var Scriptaculous = {
  Version: '1.8.1',
  require: function(libraryName) {
    // inserting via DOM fails in Safari 2.0, so brute force approach
    document.write('<script type="text/javascript" src="'+libraryName+'"><\/script>');
  },
  REQUIRED_PROTOTYPE: '1.6.0',
  load: function() {
    function convertVersionString(versionString){
      var r = versionString.split('.');
      return parseInt(r[0])*100000 + parseInt(r[1])*1000 + parseInt(r[2]);
    }
 
    if((typeof Prototype=='undefined') || 
       (typeof Element == 'undefined') || 
       (typeof Element.Methods=='undefined') ||
       (convertVersionString(Prototype.Version) < 
        convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE)))
       throw("script.aculo.us requires the Prototype JavaScript framework >= " +
        Scriptaculous.REQUIRED_PROTOTYPE);
    
  }
}

Scriptaculous.load();


var Builder = {
  NODEMAP: {
    AREA: 'map',
    CAPTION: 'table',
    COL: 'table',
    COLGROUP: 'table',
    LEGEND: 'fieldset',
    OPTGROUP: 'select',
    OPTION: 'select',
    PARAM: 'object',
    TBODY: 'table',
    TD: 'table',
    TFOOT: 'table',
    TH: 'table',
    THEAD: 'table',
    TR: 'table'
  },
  node: function(elementName) {
    elementName = elementName.toUpperCase();
    var parentTag = this.NODEMAP[elementName] || 'div';
    var parentElement = document.createElement(parentTag);
    try {
      parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
    } catch(e) {}
    var element = parentElement.firstChild || null;
    
    if(element && (element.tagName.toUpperCase() != elementName))
      element = element.getElementsByTagName(elementName)[0];
    
    if(!element) element = document.createElement(elementName);
    
    if(!element) return;

    if(arguments[1])
      if(this._isStringOrNumber(arguments[1]) ||
        (arguments[1] instanceof Array) ||
        arguments[1].tagName) {
          this._children(element, arguments[1]);
        } else {
          var attrs = this._attributes(arguments[1]);
          if(attrs.length) {
            try {
              parentElement.innerHTML = "<" +elementName + " " +
                attrs + "></" + elementName + ">";
            } catch(e) {}
            element = parentElement.firstChild || null;

            if(!element) {
              element = document.createElement(elementName);
              for(attr in arguments[1]) 
                element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
            }
            if(element.tagName.toUpperCase() != elementName)
              element = parentElement.getElementsByTagName(elementName)[0];
          }
        } 

    if(arguments[2])
      this._children(element, arguments[2]);

     return element;
  },
  _text: function(text) {
     return document.createTextNode(text);
  },

  ATTR_MAP: {
    'className': 'class',
    'htmlFor': 'for'
  },

  _attributes: function(attributes) {
    var attrs = [];
    for(attribute in attributes)
      attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) +
          '="' + attributes[attribute].toString().escapeHTML().gsub(/"/,'&quot;') + '"');
    return attrs.join(" ");
  },
  _children: function(element, children) {
    if(children.tagName) {
      element.appendChild(children);
      return;
    }
    if(typeof children=='object') {
      children.flatten().each( function(e) {
        if(typeof e=='object')
          element.appendChild(e)
        else
          if(Builder._isStringOrNumber(e))
            element.appendChild(Builder._text(e));
      });
    } else
      if(Builder._isStringOrNumber(children))
        element.appendChild(Builder._text(children));
  },
  _isStringOrNumber: function(param) {
    return(typeof param=='string' || typeof param=='number');
  },
  build: function(html) {
    var element = this.node('div');
    $(element).update(html.strip());
    return element.down();
  },
  dump: function(scope) { 
    if(typeof scope != 'object' && typeof scope != 'function') scope = window;
  
    var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " +
      "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " +
      "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX "+
      "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P "+
      "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD "+
      "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);
  
    tags.each( function(tag){ 
      scope[tag] = function() { 
        return Builder.node.apply(Builder, [tag].concat($A(arguments)));  
      } 
    });
  }
};




String.prototype.parseColor = function() {  
  var color = '#';
  if (this.slice(0,4) == 'rgb(') {  
    var cols = this.slice(4,this.length-1).split(',');  
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  
  } else {  
    if (this.slice(0,1) == '#') {  
      if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  
      if (this.length==7) color = this.toLowerCase();  
    }  
  }  
  return (color.length==7 ? color : (arguments[0] || this));  
};

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
  }).flatten().join('');
};

Element.collectTextNodesIgnoreClass = function(element, className) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 
        Element.collectTextNodesIgnoreClass(node, className) : ''));
  }).flatten().join('');
};

Element.setContentZoom = function(element, percent) {
  element = $(element);  
  element.setStyle({fontSize: (percent/100) + 'em'});   
  if (Prototype.Browser.WebKit) window.scrollBy(0,0);
  return element;
};

Element.getInlineOpacity = function(element){
  return $(element).style.opacity || '';
};

Element.forceRerendering = function(element) {
  try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
  } catch(e) { }
};

/*--------------------------------------------------------------------------*/

var Effect = {
  _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },
  Transitions: {
    linear: Prototype.K,
    sinoidal: function(pos) {
      return (-Math.cos(pos*Math.PI)/2) + 0.5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
    },
    pulse: function(pos, pulses) { 
      pulses = pulses || 5; 
      return (
        ((pos % (1/pulses)) * pulses).round() == 0 ? 
              ((pos * pulses * 2) - (pos * pulses * 2).floor()) : 
          1 - ((pos * pulses * 2) - (pos * pulses * 2).floor())
        );
    },
    spring: function(pos) { 
      return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6)); 
    },
    none: function(pos) {
      return 0;
    },
    full: function(pos) {
      return 1;
    }
  },
  DefaultOptions: {
    duration:   1.0,   // seconds
    fps:        100,   // 100= assume 66fps max.
    sync:       false, // true for combining
    from:       0.0,
    to:         1.0,
    delay:      0.0,
    queue:      'parallel'
  },
  tagifyText: function(element) {
    var tagifyStyle = 'position:relative';
    if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';
    
    element = $(element);
    $A(element.childNodes).each( function(child) {
      if (child.nodeType==3) {
        child.nodeValue.toArray().each( function(character) {
          element.insertBefore(
            new Element('span', {style: tagifyStyle}).update(
              character == ' ' ? String.fromCharCode(160) : character), 
              child);
        });
        Element.remove(child);
      }
    });
  },
  multiple: function(element, effect) {
    var elements;
    if (((typeof element == 'object') || 
        Object.isFunction(element)) && 
       (element.length))
      elements = element;
    else
      elements = $(element).childNodes;
      
    var options = Object.extend({
      speed: 0.1,
      delay: 0.0
    }, arguments[2] || { });
    var masterDelay = options.delay;

    $A(elements).each( function(element, index) {
      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
    });
  },
  PAIRS: {
    'slide':  ['SlideDown','SlideUp'],
    'blind':  ['BlindDown','BlindUp'],
    'appear': ['Appear','Fade']
  },
  toggle: function(element, effect) {
    element = $(element);
    effect = (effect || 'appear').toLowerCase();
    var options = Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, arguments[2] || { });
    Effect[element.visible() ? 
      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
  }
};

Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create(Enumerable, {
  initialize: function() {
    this.effects  = [];
    this.interval = null;    
  },
  _each: function(iterator) {
    this.effects._each(iterator);
  },
  add: function(effect) {
    var timestamp = new Date().getTime();
    
    var position = Object.isString(effect.options.queue) ? 
      effect.options.queue : effect.options.queue.position;
    
    switch(position) {
      case 'front':
        // move unstarted effects after this effect  
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
          });
        break;
      case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
      case 'end':
        // start effect after last queued effect has finished
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }
    
    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
      this.effects.push(effect);
    
    if (!this.interval)
      this.interval = setInterval(this.loop.bind(this), 15);
  },
  remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if (this.effects.length == 0) {
      clearInterval(this.interval);
      this.interval = null;
    }
  },
  loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++) 
      this.effects[i] && this.effects[i].loop(timePos);
  }
});

Effect.Queues = {
  instances: $H(),
  get: function(queueName) {
    if (!Object.isString(queueName)) return queueName;
    
    return this.instances.get(queueName) ||
      this.instances.set(queueName, new Effect.ScopedQueue());
  }
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
  position: null,
  start: function(options) {
    function codeForEvent(options,eventName){
      return (
        (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
        (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
      );
    }
    if (options && options.transition === false) options.transition = Effect.Transitions.linear;
    this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
    this.currentFrame = 0;
    this.state        = 'idle';
    this.startOn      = this.options.delay*1000;
    this.finishOn     = this.startOn+(this.options.duration*1000);
    this.fromToDelta  = this.options.to-this.options.from;
    this.totalTime    = this.finishOn-this.startOn;
    this.totalFrames  = this.options.fps*this.options.duration;
    
    eval('this.render = function(pos){ '+
      'if (this.state=="idle"){this.state="running";'+
      codeForEvent(this.options,'beforeSetup')+
      (this.setup ? 'this.setup();':'')+ 
      codeForEvent(this.options,'afterSetup')+
      '};if (this.state=="running"){'+
      'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
      'this.position=pos;'+
      codeForEvent(this.options,'beforeUpdate')+
      (this.update ? 'this.update(pos);':'')+
      codeForEvent(this.options,'afterUpdate')+
      '}}');
    
    this.event('beforeStart');
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ? 
        'global' : this.options.queue.scope).add(this);
  },
  loop: function(timePos) {
    if (timePos >= this.startOn) {
      if (timePos >= this.finishOn) {
        this.render(1.0);
        this.cancel();
        this.event('beforeFinish');
        if (this.finish) this.finish(); 
        this.event('afterFinish');
        return;  
      }
      var pos   = (timePos - this.startOn) / this.totalTime,
          frame = (pos * this.totalFrames).round();
      if (frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
      }
    }
  },
  cancel: function() {
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ? 
        'global' : this.options.queue.scope).remove(this);
    this.state = 'finished';
  },
  event: function(eventName) {
    if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
    if (this.options[eventName]) this.options[eventName](this);
  },
  inspect: function() {
    var data = $H();
    for(property in this)
      if (!Object.isFunction(this[property])) data.set(property, this[property]);
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
  }
});

Effect.Parallel = Class.create(Effect.Base, {
  initialize: function(effects) {
    this.effects = effects || [];
    this.start(arguments[1]);
  },
  update: function(position) {
    this.effects.invoke('render', position);
  },
  finish: function(position) {
    this.effects.each( function(effect) {
      effect.render(1.0);
      effect.cancel();
      effect.event('beforeFinish');
      if (effect.finish) effect.finish(position);
      effect.event('afterFinish');
    });
  }
});

Effect.Tween = Class.create(Effect.Base, {
  initialize: function(object, from, to) {
    object = Object.isString(object) ? $(object) : object;
    var args = $A(arguments), method = args.last(), 
      options = args.length == 5 ? args[3] : null;
    this.method = Object.isFunction(method) ? method.bind(object) :
      Object.isFunction(object[method]) ? object[method].bind(object) : 
      function(value) { object[method] = value };
    this.start(Object.extend({ from: from, to: to }, options || { }));
  },
  update: function(position) {
    this.method(position);
  }
});

Effect.Event = Class.create(Effect.Base, {
  initialize: function() {
    this.start(Object.extend({ duration: 0 }, arguments[0] || { }));
  },
  update: Prototype.emptyFunction
});

Effect.Opacity = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    // make this work on IE on elements without 'layout'
    if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
      this.element.setStyle({zoom: 1});
    var options = Object.extend({
      from: this.element.getOpacity() || 0.0,
      to:   1.0
    }, arguments[1] || { });
    this.start(options);
  },
  update: function(position) {
    this.element.setOpacity(position);
  }
});

Effect.Move = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'relative'
    }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if (this.options.mode == 'absolute') {
      this.options.x = this.options.x - this.originalLeft;
      this.options.y = this.options.y - this.originalTop;
    }
  },
  update: function(position) {
    this.element.setStyle({
      left: (this.options.x  * position + this.originalLeft).round() + 'px',
      top:  (this.options.y  * position + this.originalTop).round()  + 'px'
    });
  }
});

// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
  return new Effect.Move(element, 
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));
};

Effect.Scale = Class.create(Effect.Base, {
  initialize: function(element, percent) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      scaleX: true,
      scaleY: true,
      scaleContent: true,
      scaleFromCenter: false,
      scaleMode: 'box',        // 'box' or 'contents' or { } with provided values
      scaleFrom: 100.0,
      scaleTo:   percent
    }, arguments[2] || { });
    this.start(options);
  },
  setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');
    
    this.originalStyle = { };
    ['top','left','width','height','fontSize'].each( function(k) {
      this.originalStyle[k] = this.element.style[k];
    }.bind(this));
      
    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;
    
    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
      if (fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
      }
    }.bind(this));
    
    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
    
    this.dims = null;
    if (this.options.scaleMode=='box')
      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if (/^content/.test(this.options.scaleMode))
      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if (!this.dims)
      this.dims = [this.options.scaleMode.originalHeight,
                   this.options.scaleMode.originalWidth];
  },
  update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if (this.options.scaleContent && this.fontSize)
      this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
  },
  finish: function(position) {
    if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
  },
  setDimensions: function(height, width) {
    var d = { };
    if (this.options.scaleX) d.width = width.round() + 'px';
    if (this.options.scaleY) d.height = height.round() + 'px';
    if (this.options.scaleFromCenter) {
      var topd  = (height - this.dims[0])/2;
      var leftd = (width  - this.dims[1])/2;
      if (this.elementPositioning == 'absolute') {
        if (this.options.scaleY) d.top = this.originalTop-topd + 'px';
        if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
      } else {
        if (this.options.scaleY) d.top = -topd + 'px';
        if (this.options.scaleX) d.left = -leftd + 'px';
      }
    }
    this.element.setStyle(d);
  }
});

Effect.Highlight = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    // Prevent executing on elements not in the layout flow
    if (this.element.getStyle('display')=='none') { this.cancel(); return; }
    // Disable background image during the effect
    this.oldStyle = { };
    if (!this.options.keepBackgroundImage) {
      this.oldStyle.backgroundImage = this.element.getStyle('background-image');
      this.element.setStyle({backgroundImage: 'none'});
    }
    if (!this.options.endcolor)
      this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if (!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('background-color');
    // init color calculations
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
  },
  update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
      return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
  },
  finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
      backgroundColor: this.options.restorecolor
    }));
  }
});

Effect.ScrollTo = function(element) {
  var options = arguments[1] || { },
    scrollOffsets = document.viewport.getScrollOffsets(),
    elementOffsets = $(element).cumulativeOffset(),
    max = (window.height || document.body.scrollHeight) - document.viewport.getHeight();  

  if (options.offset) elementOffsets[1] += options.offset;

  return new Effect.Tween(null,
    scrollOffsets.top,
    elementOffsets[1] > max ? max : elementOffsets[1],
    options,
    function(p){ scrollTo(scrollOffsets.left, p.round()) }
  );
};

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  var options = Object.extend({
    from: element.getOpacity() || 1.0,
    to:   0.0,
    afterFinishInternal: function(effect) { 
      if (effect.options.to!=0) return;
      effect.element.hide().setStyle({opacity: oldOpacity}); 
    }
  }, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Appear = function(element) {
  element = $(element);
  var options = Object.extend({
  from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
  to:   1.0,
  // force Safari to render floated elements properly
  afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
  },
  beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show(); 
  }}, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Puff = function(element) {
  element = $(element);
  var oldStyle = { 
    opacity: element.getInlineOpacity(), 
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
  };
  return new Effect.Parallel(
   [ new Effect.Scale(element, 200, 
      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
     Object.extend({ duration: 1.0, 
      beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element)
      },
      afterFinishInternal: function(effect) {
         effect.effects[0].element.hide().setStyle(oldStyle); }
     }, arguments[1] || { })
   );
};

Effect.BlindUp = function(element) {
  element = $(element);
  element.makeClipping();
  return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false, 
      scaleX: false, 
      restoreAfterFinish: true,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
      } 
    }, arguments[1] || { })
  );
};

Effect.BlindDown = function(element) {
  element = $(element);
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.undoClipping();
    }
  }, arguments[1] || { }));
};

Effect.SwitchOff = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
      new Effect.Scale(effect.element, 1, { 
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) { 
          effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
          effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
      })
    }
  }, arguments[1] || { }));
};

Effect.DropOut = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
  return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
      { duration: 0.5,
        beforeSetup: function(effect) {
          effect.effects[0].element.makePositioned(); 
        },
        afterFinishInternal: function(effect) {
          effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        } 
      }, arguments[1] || { }));
};

Effect.Shake = function(element) {
  element = $(element);
  var options = Object.extend({
    distance: 20,
    duration: 0.5
  }, arguments[1] || {});
  var distance = parseFloat(options.distance);
  var split = parseFloat(options.duration) / 10.0;
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element,
      { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
  }}) }}) }}) }}) }}) }});
};

Effect.SlideDown = function(element) {
  element = $(element).cleanWhitespace();
  // SlideDown need to have the content of the element wrapped in a container element with fixed height!
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false, 
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' }); 
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || { })
  );
};

Effect.SlideUp = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, window.opera ? 0 : 1,
   Object.extend({ scaleContent: false, 
    scaleX: false, 
    scaleMode: 'box',
    scaleFrom: 100,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().show();
    },  
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
    }
   }, arguments[1] || { })
  );
};

// Bug in opera makes the TD containing this element expand for a instance after finish 
Effect.Squish = function(element) {
  return new Effect.Scale(element, window.opera ? 1 : 0, { 
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
      effect.element.makeClipping(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping(); 
    }
  });
};

Effect.Grow = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();    
  var initialMoveX, initialMoveY;
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      initialMoveX = initialMoveY = moveX = moveY = 0; 
      break;
    case 'top-right':
      initialMoveX = dims.width;
      initialMoveY = moveY = 0;
      moveX = -dims.width;
      break;
    case 'bottom-left':
      initialMoveX = moveX = 0;
      initialMoveY = dims.height;
      moveY = -dims.height;
      break;
    case 'bottom-right':
      initialMoveX = dims.width;
      initialMoveY = dims.height;
      moveX = -dims.width;
      moveY = -dims.height;
      break;
    case 'center':
      initialMoveX = dims.width / 2;
      initialMoveY = dims.height / 2;
      moveX = -dims.width / 2;
      moveY = -dims.height / 2;
      break;
  }
  
  return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01, 
    beforeSetup: function(effect) {
      effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
      new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
          new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
             beforeSetup: function(effect) {
               effect.effects[0].element.setStyle({height: '0px'}).show(); 
             },
             afterFinishInternal: function(effect) {
               effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); 
             }
           }, options)
      )
    }
  });
};

Effect.Shrink = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      moveX = moveY = 0;
      break;
    case 'top-right':
      moveX = dims.width;
      moveY = 0;
      break;
    case 'bottom-left':
      moveX = 0;
      moveY = dims.height;
      break;
    case 'bottom-right':
      moveX = dims.width;
      moveY = dims.height;
      break;
    case 'center':  
      moveX = dims.width / 2;
      moveY = dims.height / 2;
      break;
  }
  
  return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({            
         beforeStartInternal: function(effect) {
           effect.effects[0].element.makePositioned().makeClipping(); 
         },
         afterFinishInternal: function(effect) {
           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
       }, options)
  );
};

Effect.Pulsate = function(element) {
  element = $(element);
  var options    = arguments[1] || { };
  var oldOpacity = element.getInlineOpacity();
  var transition = options.transition || Effect.Transitions.sinoidal;
  var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
  reverser.bind(transition);
  return new Effect.Opacity(element, 
    Object.extend(Object.extend({  duration: 2.0, from: 0,
      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
};

Effect.Fold = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
  element.makeClipping();
  return new Effect.Scale(element, 5, Object.extend({   
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, { 
      scaleContent: false, 
      scaleY: false,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
      } });
  }}, arguments[1] || { }));
};

Effect.Morph = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      style: { }
    }, arguments[1] || { });
    
    if (!Object.isString(options.style)) this.style = $H(options.style);
    else {
      if (options.style.include(':'))
        this.style = options.style.parseStyle();
      else {
        this.element.addClassName(options.style);
        this.style = $H(this.element.getStyles());
        this.element.removeClassName(options.style);
        var css = this.element.getStyles();
        this.style = this.style.reject(function(style) {
          return style.value == css[style.key];
        });
        options.afterFinishInternal = function(effect) {
          effect.element.addClassName(effect.options.style);
          effect.transforms.each(function(transform) {
            effect.element.style[transform.style] = '';
          });
        }
      }
    }
    this.start(options);
  },
  
  setup: function(){
    function parseColor(color){
      if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
      color = color.parseColor();
      return $R(0,2).map(function(i){
        return parseInt( color.slice(i*2+1,i*2+3), 16 ) 
      });
    }
    this.transforms = this.style.map(function(pair){
      var property = pair[0], value = pair[1], unit = null;

      if (value.parseColor('#zzzzzz') != '#zzzzzz') {
        value = value.parseColor();
        unit  = 'color';
      } else if (property == 'opacity') {
        value = parseFloat(value);
        if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
          this.element.setStyle({zoom: 1});
      } else if (Element.CSS_LENGTH.test(value)) {
          var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
          value = parseFloat(components[1]);
          unit = (components.length == 3) ? components[2] : null;
      }

      var originalValue = this.element.getStyle(property);
      return { 
        style: property.camelize(), 
        originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0), 
        targetValue: unit=='color' ? parseColor(value) : value,
        unit: unit
      };
    }.bind(this)).reject(function(transform){
      return (
        (transform.originalValue == transform.targetValue) ||
        (
          transform.unit != 'color' &&
          (isNaN(transform.originalValue) || isNaN(transform.targetValue))
        )
      )
    });
  },
  update: function(position) {
    var style = { }, transform, i = this.transforms.length;
    while(i--)
      style[(transform = this.transforms[i]).style] = 
        transform.unit=='color' ? '#'+
          (Math.round(transform.originalValue[0]+
            (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
          (Math.round(transform.originalValue[1]+
            (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
          (Math.round(transform.originalValue[2]+
            (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
        (transform.originalValue +
          (transform.targetValue - transform.originalValue) * position).toFixed(3) + 
            (transform.unit === null ? '' : transform.unit);
    this.element.setStyle(style, true);
  }
});

Effect.Transform = Class.create({
  initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || { };
    this.addTracks(tracks);
  },
  addTracks: function(tracks){
    tracks.each(function(track){
      track = $H(track);
      var data = track.values().first();
      this.tracks.push($H({
        ids:     track.keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
      }));
    }.bind(this));
    return this;
  },
  play: function(){
    return new Effect.Parallel(
      this.tracks.map(function(track){
        var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
        var elements = [$(ids) || $$(ids)].flatten();
        return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });
      }).flatten(),
      this.options
    );
  }
});

Element.CSS_PROPERTIES = $w(
  'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + 
  'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
  'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
  'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
  'fontSize fontWeight height left letterSpacing lineHeight ' +
  'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
  'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
  'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
  'right textIndent top width wordSpacing zIndex');
  
Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function(){
  var style, styleRules = $H();
  if (Prototype.Browser.WebKit)
    style = new Element('div',{style:this}).style;
  else {
    String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
    style = String.__parseStyleElement.childNodes[0].style;
  }
  
  Element.CSS_PROPERTIES.each(function(property){
    if (style[property]) styleRules.set(property, style[property]); 
  });
  
  if (Prototype.Browser.IE && this.include('opacity'))
    styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

  return styleRules;
};

if (document.defaultView && document.defaultView.getComputedStyle) {
  Element.getStyles = function(element) {
    var css = document.defaultView.getComputedStyle($(element), null);
    return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {
      styles[property] = css[property];
      return styles;
    });
  };
} else {
  Element.getStyles = function(element) {
    element = $(element);
    var css = element.currentStyle, styles;
    styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {
      results[property] = css[property];
      return results;
    });
    if (!styles.opacity) styles.opacity = element.getOpacity();
    return styles;
  };
};

Effect.Methods = {
  morph: function(element, style) {
    element = $(element);
    new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
    return element;
  },
  visualEffect: function(element, effect, options) {
    element = $(element)
    var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
    new Effect[klass](element, options);
    return element;
  },
  highlight: function(element, options) {
    element = $(element);
    new Effect.Highlight(element, options);
    return element;
  }
};

$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+
  'pulsate shake puff squish switchOff dropOut').each(
  function(effect) { 
    Effect.Methods[effect] = function(element, options){
      element = $(element);
      Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
      return element;
    }
  }
);

$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each( 
  function(f) { Effect.Methods[f] = Element[f]; }
);

Element.addMethods(Effect.Methods);



//script.aculo.us dragdrop.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

//Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//        (c) 2005-2007 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
//
//script.aculo.us is freely distributable under the terms of an MIT-style license.
//For details, see the script.aculo.us web site: http://script.aculo.us/

if(Object.isUndefined(Effect))
throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
drops: [],

remove: function(element) {
 this.drops = this.drops.reject(function(d) { return d.element==$(element) });
},

add: function(element) {
 element = $(element);
 var options = Object.extend({
   greedy:     true,
   hoverclass: null,
   tree:       false
 }, arguments[1] || { });

 // cache containers
 if(options.containment) {
   options._containers = [];
   var containment = options.containment;
   if(Object.isArray(containment)) {
     containment.each( function(c) { options._containers.push($(c)) });
   } else {
     options._containers.push($(containment));
   }
 }
 
 if(options.accept) options.accept = [options.accept].flatten();

 Element.makePositioned(element); // fix IE
 options.element = element;

 this.drops.push(options);
},

findDeepestChild: function(drops) {
 deepest = drops[0];
   
 for (i = 1; i < drops.length; ++i)
   if (Element.isParent(drops[i].element, deepest.element))
     deepest = drops[i];
 
 return deepest;
},

isContained: function(element, drop) {
 var containmentNode;
 if(drop.tree) {
   containmentNode = element.treeNode; 
 } else {
   containmentNode = element.parentNode;
 }
 return drop._containers.detect(function(c) { return containmentNode == c });
},

isAffected: function(point, element, drop) {
 return (
   (drop.element!=element) &&
   ((!drop._containers) ||
     this.isContained(element, drop)) &&
   ((!drop.accept) ||
     (Element.classNames(element).detect( 
       function(v) { return drop.accept.include(v) } ) )) &&
   Position.within(drop.element, point[0], point[1]) );
},

deactivate: function(drop) {
 if(drop.hoverclass)
   Element.removeClassName(drop.element, drop.hoverclass);
 this.last_active = null;
},

activate: function(drop) {
 if(drop.hoverclass)
   Element.addClassName(drop.element, drop.hoverclass);
 this.last_active = drop;
},

show: function(point, element) {
 if(!this.drops.length) return;
 var drop, affected = [];
 
 this.drops.each( function(drop) {
   if(Droppables.isAffected(point, element, drop))
     affected.push(drop);
 });
     
 if(affected.length>0)
   drop = Droppables.findDeepestChild(affected);

 if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
 if (drop) {
   Position.within(drop.element, point[0], point[1]);
   if(drop.onHover)
     drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));
   
   if (drop != this.last_active) Droppables.activate(drop);
 }
},

fire: function(event, element) {
 if(!this.last_active) return;
 Position.prepare();

 if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
   if (this.last_active.onDrop) {
     this.last_active.onDrop(element, this.last_active.element, event); 
     return true; 
   }
},

reset: function() {
 if(this.last_active)
   this.deactivate(this.last_active);
}
}

var Draggables = {
drags: [],
observers: [],

register: function(draggable) {
 if(this.drags.length == 0) {
   this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
   this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
   this.eventKeypress  = this.keyPress.bindAsEventListener(this);
   
   Event.observe(document, "mouseup", this.eventMouseUp);
   Event.observe(document, "mousemove", this.eventMouseMove);
   Event.observe(document, "keypress", this.eventKeypress);
 }
 this.drags.push(draggable);
},

unregister: function(draggable) {
 this.drags = this.drags.reject(function(d) { return d==draggable });
 if(this.drags.length == 0) {
   Event.stopObserving(document, "mouseup", this.eventMouseUp);
   Event.stopObserving(document, "mousemove", this.eventMouseMove);
   Event.stopObserving(document, "keypress", this.eventKeypress);
 }
},

activate: function(draggable) {
 if(draggable.options.delay) { 
   this._timeout = setTimeout(function() { 
     Draggables._timeout = null; 
     window.focus(); 
     Draggables.activeDraggable = draggable; 
   }.bind(this), draggable.options.delay); 
 } else {
   window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
   this.activeDraggable = draggable;
 }
},

deactivate: function() {
 this.activeDraggable = null;
},

updateDrag: function(event) {
 if(!this.activeDraggable) return;
 var pointer = [Event.pointerX(event), Event.pointerY(event)];
 // Mozilla-based browsers fire successive mousemove events with
 // the same coordinates, prevent needless redrawing (moz bug?)
 if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
 this._lastPointer = pointer;
 
 this.activeDraggable.updateDrag(event, pointer);
},

endDrag: function(event) {
 if(this._timeout) { 
   clearTimeout(this._timeout); 
   this._timeout = null; 
 }
 if(!this.activeDraggable) return;
 this._lastPointer = null;
 this.activeDraggable.endDrag(event);
 this.activeDraggable = null;
},

keyPress: function(event) {
 if(this.activeDraggable)
   this.activeDraggable.keyPress(event);
},

addObserver: function(observer) {
 this.observers.push(observer);
 this._cacheObserverCallbacks();
},

removeObserver: function(element) {  // element instead of observer fixes mem leaks
 this.observers = this.observers.reject( function(o) { return o.element==element });
 this._cacheObserverCallbacks();
},

notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
 if(this[eventName+'Count'] > 0)
   this.observers.each( function(o) {
     if(o[eventName]) o[eventName](eventName, draggable, event);
   });
 if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
},

_cacheObserverCallbacks: function() {
 ['onStart','onEnd','onDrag'].each( function(eventName) {
   Draggables[eventName+'Count'] = Draggables.observers.select(
     function(o) { return o[eventName]; }
   ).length;
 });
}
}

/*--------------------------------------------------------------------------*/

var Draggable = Class.create({
initialize: function(element) {
 var defaults = {
   handle: false,
   reverteffect: function(element, top_offset, left_offset) {
     var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
     new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
       queue: {scope:'_draggable', position:'end'}
     });
   },
   endeffect: function(element) {
     var toOpacity = Object.isNumber(element._opacity) ? element._opacity : 1.0;
     new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity, 
       queue: {scope:'_draggable', position:'end'},
       afterFinish: function(){ 
         Draggable._dragging[element] = false 
       }
     }); 
   },
   zindex: 1000,
   revert: false,
   quiet: false,
   scroll: false,
   scrollSensitivity: 20,
   scrollSpeed: 15,
   snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
   delay: 0
 };
 
 if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
   Object.extend(defaults, {
     starteffect: function(element) {
       element._opacity = Element.getOpacity(element);
       Draggable._dragging[element] = true;
       new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7}); 
     }
   });
 
 var options = Object.extend(defaults, arguments[1] || { });

 this.element = $(element);
 
 if(options.handle && Object.isString(options.handle))
   this.handle = this.element.down('.'+options.handle, 0);
 
 if(!this.handle) this.handle = $(options.handle);
 if(!this.handle) this.handle = this.element;
 
 if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
   options.scroll = $(options.scroll);
   this._isScrollChild = Element.childOf(this.element, options.scroll);
 }

 Element.makePositioned(this.element); // fix IE    

 this.options  = options;
 this.dragging = false;   

 this.eventMouseDown = this.initDrag.bindAsEventListener(this);
 Event.observe(this.handle, "mousedown", this.eventMouseDown);
 
 Draggables.register(this);
},

destroy: function() {
 Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
 Draggables.unregister(this);
},

currentDelta: function() {
 return([
   parseInt(Element.getStyle(this.element,'left') || '0'),
   parseInt(Element.getStyle(this.element,'top') || '0')]);
},

initDrag: function(event) {
 if(!Object.isUndefined(Draggable._dragging[this.element]) &&
   Draggable._dragging[this.element]) return;
 if(Event.isLeftClick(event)) {    
   // abort on form elements, fixes a Firefox issue
   var src = Event.element(event);
   if((tag_name = src.tagName.toUpperCase()) && (
     tag_name=='INPUT' ||
     tag_name=='SELECT' ||
     tag_name=='OPTION' ||
     tag_name=='BUTTON' ||
     tag_name=='TEXTAREA')) return;
     
   var pointer = [Event.pointerX(event), Event.pointerY(event)];
   var pos     = Position.cumulativeOffset(this.element);
   this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });
   
   Draggables.activate(this);
   Event.stop(event);
 }
},

startDrag: function(event) {
 this.dragging = true;
 if(!this.delta)
   this.delta = this.currentDelta();
 
 if(this.options.zindex) {
   this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
   this.element.style.zIndex = this.options.zindex;
 }
 
 if(this.options.ghosting) {
   this._clone = this.element.cloneNode(true);
   this.element._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
   if (!this.element._originallyAbsolute)
     Position.absolutize(this.element);
   this.element.parentNode.insertBefore(this._clone, this.element);
 }
 
 if(this.options.scroll) {
   if (this.options.scroll == window) {
     var where = this._getWindowScroll(this.options.scroll);
     this.originalScrollLeft = where.left;
     this.originalScrollTop = where.top;
   } else {
     this.originalScrollLeft = this.options.scroll.scrollLeft;
     this.originalScrollTop = this.options.scroll.scrollTop;
   }
 }
 
 Draggables.notify('onStart', this, event);
     
 if(this.options.starteffect) this.options.starteffect(this.element);
},

updateDrag: function(event, pointer) {
 if(!this.dragging) this.startDrag(event);
 
 if(!this.options.quiet){
   Position.prepare();
   Droppables.show(pointer, this.element);
 }
 
 Draggables.notify('onDrag', this, event);
 
 this.draw(pointer);
 if(this.options.change) this.options.change(this);
 
 if(this.options.scroll) {
   this.stopScrolling();
   
   var p;
   if (this.options.scroll == window) {
     with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
   } else {
     p = Position.page(this.options.scroll);
     p[0] += this.options.scroll.scrollLeft + Position.deltaX;
     p[1] += this.options.scroll.scrollTop + Position.deltaY;
     p.push(p[0]+this.options.scroll.offsetWidth);
     p.push(p[1]+this.options.scroll.offsetHeight);
   }
   var speed = [0,0];
   if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
   if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
   if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
   if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
   this.startScrolling(speed);
 }
 
 // fix AppleWebKit rendering
 if(Prototype.Browser.WebKit) window.scrollBy(0,0);
 
 Event.stop(event);
},

finishDrag: function(event, success) {
 this.dragging = false;
 
 if(this.options.quiet){
   Position.prepare();
   var pointer = [Event.pointerX(event), Event.pointerY(event)];
   Droppables.show(pointer, this.element);
 }

 if(this.options.ghosting) {
   if (!this.element._originallyAbsolute)
     Position.relativize(this.element);
   delete this.element._originallyAbsolute;
   Element.remove(this._clone);
   this._clone = null;
 }

 var dropped = false; 
 if(success) { 
   dropped = Droppables.fire(event, this.element); 
   if (!dropped) dropped = false; 
 }
 if(dropped && this.options.onDropped) this.options.onDropped(this.element);
 Draggables.notify('onEnd', this, event);

 var revert = this.options.revert;
 if(revert && Object.isFunction(revert)) revert = revert(this.element);
 
 var d = this.currentDelta();
 if(revert && this.options.reverteffect) {
   if (dropped == 0 || revert != 'failure')
     this.options.reverteffect(this.element,
       d[1]-this.delta[1], d[0]-this.delta[0]);
 } else {
   this.delta = d;
 }

 if(this.options.zindex)
   this.element.style.zIndex = this.originalZ;

 if(this.options.endeffect) 
   this.options.endeffect(this.element);
   
 Draggables.deactivate(this);
 Droppables.reset();
},

keyPress: function(event) {
 if(event.keyCode!=Event.KEY_ESC) return;
 this.finishDrag(event, false);
 Event.stop(event);
},

endDrag: function(event) {
 if(!this.dragging) return;
 this.stopScrolling();
 this.finishDrag(event, true);
 Event.stop(event);
},

draw: function(point) {
 var pos = Position.cumulativeOffset(this.element);
 if(this.options.ghosting) {
   var r   = Position.realOffset(this.element);
   pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
 }
 
 var d = this.currentDelta();
 pos[0] -= d[0]; pos[1] -= d[1];
 
 if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
   pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
   pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
 }
 
 var p = [0,1].map(function(i){ 
   return (point[i]-pos[i]-this.offset[i]) 
 }.bind(this));
 
 if(this.options.snap) {
   if(Object.isFunction(this.options.snap)) {
     p = this.options.snap(p[0],p[1],this);
   } else {
   if(Object.isArray(this.options.snap)) {
     p = p.map( function(v, i) {
       return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this))
   } else {
     p = p.map( function(v) {
       return (v/this.options.snap).round()*this.options.snap }.bind(this))
   }
 }}
 
 var style = this.element.style;
 if((!this.options.constraint) || (this.options.constraint=='horizontal'))
   style.left = p[0] + "px";
 if((!this.options.constraint) || (this.options.constraint=='vertical'))
   style.top  = p[1] + "px";
 
 if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
},

stopScrolling: function() {
 if(this.scrollInterval) {
   clearInterval(this.scrollInterval);
   this.scrollInterval = null;
   Draggables._lastScrollPointer = null;
 }
},

startScrolling: function(speed) {
 if(!(speed[0] || speed[1])) return;
 this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
 this.lastScrolled = new Date();
 this.scrollInterval = setInterval(this.scroll.bind(this), 10);
},

scroll: function() {
 var current = new Date();
 var delta = current - this.lastScrolled;
 this.lastScrolled = current;
 if(this.options.scroll == window) {
   with (this._getWindowScroll(this.options.scroll)) {
     if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
       var d = delta / 1000;
       this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
     }
   }
 } else {
   this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
   this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
 }
 
 Position.prepare();
 Droppables.show(Draggables._lastPointer, this.element);
 Draggables.notify('onDrag', this);
 if (this._isScrollChild) {
   Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
   Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
   Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
   if (Draggables._lastScrollPointer[0] < 0)
     Draggables._lastScrollPointer[0] = 0;
   if (Draggables._lastScrollPointer[1] < 0)
     Draggables._lastScrollPointer[1] = 0;
   this.draw(Draggables._lastScrollPointer);
 }
 
 if(this.options.change) this.options.change(this);
},

_getWindowScroll: function(w) {
 var T, L, W, H;
 with (w.document) {
   if (w.document.documentElement && documentElement.scrollTop) {
     T = documentElement.scrollTop;
     L = documentElement.scrollLeft;
   } else if (w.document.body) {
     T = body.scrollTop;
     L = body.scrollLeft;
   }
   if (w.innerWidth) {
     W = w.innerWidth;
     H = w.innerHeight;
   } else if (w.document.documentElement && documentElement.clientWidth) {
     W = documentElement.clientWidth;
     H = documentElement.clientHeight;
   } else {
     W = body.offsetWidth;
     H = body.offsetHeight
   }
 }
 return { top: T, left: L, width: W, height: H };
}
});

Draggable._dragging = { };

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create({
initialize: function(element, observer) {
 this.element   = $(element);
 this.observer  = observer;
 this.lastValue = Sortable.serialize(this.element);
},

onStart: function() {
 this.lastValue = Sortable.serialize(this.element);
},

onEnd: function() {
 Sortable.unmark();
 if(this.lastValue != Sortable.serialize(this.element))
   this.observer(this.element)
}
});

var Sortable = {
SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,

sortables: { },

_findRootElement: function(element) {
 while (element.tagName.toUpperCase() != "BODY") {  
   if(element.id && Sortable.sortables[element.id]) return element;
   element = element.parentNode;
 }
},

options: function(element) {
 element = Sortable._findRootElement($(element));
 if(!element) return;
 return Sortable.sortables[element.id];
},

destroy: function(element){
 var s = Sortable.options(element);
 
 if(s) {
   Draggables.removeObserver(s.element);
   s.droppables.each(function(d){ Droppables.remove(d) });
   s.draggables.invoke('destroy');
   
   delete Sortable.sortables[s.element.id];
 }
},

create: function(element) {
 element = $(element);
 var options = Object.extend({ 
   element:     element,
   tag:         'li',       // assumes li children, override with tag: 'tagname'
   dropOnEmpty: false,
   tree:        false,
   treeTag:     'ul',
   overlap:     'vertical', // one of 'vertical', 'horizontal'
   constraint:  'vertical', // one of 'vertical', 'horizontal', false
   containment: element,    // also takes array of elements (or id's); or false
   handle:      false,      // or a CSS class
   only:        false,
   delay:       0,
   hoverclass:  null,
   ghosting:    false,
   quiet:       false, 
   scroll:      false,
   scrollSensitivity: 20,
   scrollSpeed: 15,
   format:      this.SERIALIZE_RULE,
   
   // these take arrays of elements or ids and can be 
   // used for better initialization performance
   elements:    false,
   handles:     false,
   
   onChange:    Prototype.emptyFunction,
   onUpdate:    Prototype.emptyFunction
 }, arguments[1] || { });

 // clear any old sortable with same element
 this.destroy(element);

 // build options for the draggables
 var options_for_draggable = {
   revert:      true,
   quiet:       options.quiet,
   scroll:      options.scroll,
   scrollSpeed: options.scrollSpeed,
   scrollSensitivity: options.scrollSensitivity,
   delay:       options.delay,
   ghosting:    options.ghosting,
   constraint:  options.constraint,
   handle:      options.handle };

 if(options.starteffect)
   options_for_draggable.starteffect = options.starteffect;

 if(options.reverteffect)
   options_for_draggable.reverteffect = options.reverteffect;
 else
   if(options.ghosting) options_for_draggable.reverteffect = function(element) {
     element.style.top  = 0;
     element.style.left = 0;
   };

 if(options.endeffect)
   options_for_draggable.endeffect = options.endeffect;

 if(options.zindex)
   options_for_draggable.zindex = options.zindex;

 // build options for the droppables  
 var options_for_droppable = {
   overlap:     options.overlap,
   containment: options.containment,
   tree:        options.tree,
   hoverclass:  options.hoverclass,
   onHover:     Sortable.onHover
 }
 
 var options_for_tree = {
   onHover:      Sortable.onEmptyHover,
   overlap:      options.overlap,
   containment:  options.containment,
   hoverclass:   options.hoverclass
 }

 // fix for gecko engine
 Element.cleanWhitespace(element); 

 options.draggables = [];
 options.droppables = [];

 // drop on empty handling
 if(options.dropOnEmpty || options.tree) {
   Droppables.add(element, options_for_tree);
   options.droppables.push(element);
 }

 (options.elements || this.findElements(element, options) || []).each( function(e,i) {
   var handle = options.handles ? $(options.handles[i]) :
     (options.handle ? $(e).select('.' + options.handle)[0] : e); 
   options.draggables.push(
     new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
   Droppables.add(e, options_for_droppable);
   if(options.tree) e.treeNode = element;
   options.droppables.push(e);      
 });
 
 if(options.tree) {
   (Sortable.findTreeElements(element, options) || []).each( function(e) {
     Droppables.add(e, options_for_tree);
     e.treeNode = element;
     options.droppables.push(e);
   });
 }

 // keep reference
 this.sortables[element.id] = options;

 // for onupdate
 Draggables.addObserver(new SortableObserver(element, options.onUpdate));

},

// return all suitable-for-sortable elements in a guaranteed order
findElements: function(element, options) {
 return Element.findChildren(
   element, options.only, options.tree ? true : false, options.tag);
},

findTreeElements: function(element, options) {
 return Element.findChildren(
   element, options.only, options.tree ? true : false, options.treeTag);
},

onHover: function(element, dropon, overlap) {
 if(Element.isParent(dropon, element)) return;

 if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
   return;
 } else if(overlap>0.5) {
   Sortable.mark(dropon, 'before');
   if(dropon.previousSibling != element) {
     var oldParentNode = element.parentNode;
     element.style.visibility = "hidden"; // fix gecko rendering
     dropon.parentNode.insertBefore(element, dropon);
     if(dropon.parentNode!=oldParentNode) 
       Sortable.options(oldParentNode).onChange(element);
     Sortable.options(dropon.parentNode).onChange(element);
   }
 } else {
   Sortable.mark(dropon, 'after');
   var nextElement = dropon.nextSibling || null;
   if(nextElement != element) {
     var oldParentNode = element.parentNode;
     element.style.visibility = "hidden"; // fix gecko rendering
     dropon.parentNode.insertBefore(element, nextElement);
     if(dropon.parentNode!=oldParentNode) 
       Sortable.options(oldParentNode).onChange(element);
     Sortable.options(dropon.parentNode).onChange(element);
   }
 }
},

onEmptyHover: function(element, dropon, overlap) {
 var oldParentNode = element.parentNode;
 var droponOptions = Sortable.options(dropon);
     
 if(!Element.isParent(dropon, element)) {
   var index;
   
   var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
   var child = null;
         
   if(children) {
     var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);
     
     for (index = 0; index < children.length; index += 1) {
       if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
         offset -= Element.offsetSize (children[index], droponOptions.overlap);
       } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
         child = index + 1 < children.length ? children[index + 1] : null;
         break;
       } else {
         child = children[index];
         break;
       }
     }
   }
   
   dropon.insertBefore(element, child);
   
   Sortable.options(oldParentNode).onChange(element);
   droponOptions.onChange(element);
 }
},

unmark: function() {
 if(Sortable._marker) Sortable._marker.hide();
},

mark: function(dropon, position) {
 // mark on ghosting only
 var sortable = Sortable.options(dropon.parentNode);
 if(sortable && !sortable.ghosting) return; 

 if(!Sortable._marker) {
   Sortable._marker = 
     ($('dropmarker') || Element.extend(document.createElement('DIV'))).
       hide().addClassName('dropmarker').setStyle({position:'absolute'});
   document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
 }    
 var offsets = Position.cumulativeOffset(dropon);
 Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});
 
 if(position=='after')
   if(sortable.overlap == 'horizontal') 
     Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
   else
     Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});
 
 Sortable._marker.show();
},

_tree: function(element, options, parent) {
 var children = Sortable.findElements(element, options) || [];

 for (var i = 0; i < children.length; ++i) {
   var match = children[i].id.match(options.format);

   if (!match) continue;
   
   var child = {
     id: encodeURIComponent(match ? match[1] : null),
     element: element,
     parent: parent,
     children: [],
     position: parent.children.length,
     container: $(children[i]).down(options.treeTag)
   }
   
   /* Get the element containing the children and recurse over it */
   if (child.container)
     this._tree(child.container, options, child)
   
   parent.children.push (child);
 }

 return parent; 
},

tree: function(element) {
 element = $(element);
 var sortableOptions = this.options(element);
 var options = Object.extend({
   tag: sortableOptions.tag,
   treeTag: sortableOptions.treeTag,
   only: sortableOptions.only,
   name: element.id,
   format: sortableOptions.format
 }, arguments[1] || { });
 
 var root = {
   id: null,
   parent: null,
   children: [],
   container: element,
   position: 0
 }
 
 return Sortable._tree(element, options, root);
},

/* Construct a [i] index for a particular node */
_constructIndex: function(node) {
 var index = '';
 do {
   if (node.id) index = '[' + node.position + ']' + index;
 } while ((node = node.parent) != null);
 return index;
},

sequence: function(element) {
 element = $(element);
 var options = Object.extend(this.options(element), arguments[1] || { });
 
 return $(this.findElements(element, options) || []).map( function(item) {
   return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
 });
},

setSequence: function(element, new_sequence) {
 element = $(element);
 var options = Object.extend(this.options(element), arguments[2] || { });
 
 var nodeMap = { };
 this.findElements(element, options).each( function(n) {
     if (n.id.match(options.format))
         nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
     n.parentNode.removeChild(n);
 });

 new_sequence.each(function(ident) {
   var n = nodeMap[ident];
   if (n) {
     n[1].appendChild(n[0]);
     delete nodeMap[ident];
   }
 });
},

serialize: function(element) {
 element = $(element);
 var options = Object.extend(Sortable.options(element), arguments[1] || { });
 var name = encodeURIComponent(
   (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);
 
 if (options.tree) {
   return Sortable.tree(element, arguments[1]).children.map( function (item) {
     return [name + Sortable._constructIndex(item) + "[id]=" + 
             encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
   }).flatten().join('&');
 } else {
   return Sortable.sequence(element, arguments[1]).map( function(item) {
     return name + "[]=" + encodeURIComponent(item);
   }).join('&');
 }
}
}

//Returns true if child is contained within element
Element.isParent = function(child, element) {
if (!child.parentNode || child == element) return false;
if (child.parentNode == element) return true;
return Element.isParent(child.parentNode, element);
}

Element.findChildren = function(element, only, recursive, tagName) {   
if(!element.hasChildNodes()) return null;
tagName = tagName.toUpperCase();
if(only) only = [only].flatten();
var elements = [];
$A(element.childNodes).each( function(e) {
 if(e.tagName && e.tagName.toUpperCase()==tagName &&
   (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
     elements.push(e);
 if(recursive) {
   var grandchildren = Element.findChildren(e, only, recursive, tagName);
   if(grandchildren) elements.push(grandchildren);
 }
});

return (elements.length>0 ? elements.flatten() : []);
}

Element.offsetSize = function (element, type) {
return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
}



//script.aculo.us controls.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

//Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//        (c) 2005-2007 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//        (c) 2005-2007 Jon Tirsen (http://www.tirsen.com)
//Contributors:
//Richard Livsey
//Rahul Bhargava
//Rob Wills
//
//script.aculo.us is freely distributable under the terms of an MIT-style license.
//For details, see the script.aculo.us web site: http://script.aculo.us/

//Autocompleter.Base handles all the autocompletion functionality 
//that's independent of the data source for autocompletion. This
//includes drawing the autocompletion menu, observing keyboard
//and mouse events, and similar.
//
//Specific autocompleters need to provide, at the very least, 
//a getUpdatedChoices function that will be invoked every time
//the text inside the monitored textbox changes. This method 
//should get the text for which to provide autocompletion by
//invoking this.getToken(), NOT by directly accessing
//this.element.value. This is to allow incremental tokenized
//autocompletion. Specific auto-completion logic (AJAX, etc)
//belongs in getUpdatedChoices.
//
//Tokenized incremental autocompletion is enabled automatically
//when an autocompleter is instantiated with the 'tokens' option
//in the options parameter, e.g.:
//new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
//will incrementally autocomplete with a comma as the token.
//Additionally, ',' in the above example can be replaced with
//a token array, e.g. { tokens: [',', '\n'] } which
//enables autocompletion on multiple tokens. This is most 
//useful when one of the tokens is \n (a newline), as it 
//allows smart autocompletion after linebreaks.

if(typeof Effect == 'undefined')
throw("controls.js requires including script.aculo.us' effects.js library");

var Autocompleter = { }
Autocompleter.Base = Class.create({
baseInitialize: function(element, update, options) {
 element          = $(element)
 this.element     = element; 
 this.update      = $(update);  
 this.hasFocus    = false; 
 this.changed     = false; 
 this.active      = false; 
 this.index       = 0;     
 this.entryCount  = 0;
 this.oldElementValue = this.element.value;

 if(this.setOptions)
   this.setOptions(options);
 else
   this.options = options || { };

 this.options.paramName    = this.options.paramName || this.element.name;
 this.options.tokens       = this.options.tokens || [];
 this.options.frequency    = this.options.frequency || 0.4;
 this.options.minChars     = this.options.minChars || 1;
 this.options.onShow       = this.options.onShow || 
   function(element, update){ 
     if(!update.style.position || update.style.position=='absolute') {
       update.style.position = 'absolute';
       Position.clone(element, update, {
         setHeight: false, 
         offsetTop: element.offsetHeight
       });
     }
     Effect.Appear(update,{duration:0.15});
   };
 this.options.onHide = this.options.onHide || 
   function(element, update){ new Effect.Fade(update,{duration:0.15}) };

 if(typeof(this.options.tokens) == 'string') 
   this.options.tokens = new Array(this.options.tokens);
 // Force carriage returns as token delimiters anyway
 if (!this.options.tokens.include('\n'))
   this.options.tokens.push('\n');

 this.observer = null;
 
 this.element.setAttribute('autocomplete','off');

 Element.hide(this.update);

 Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
 Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
},

show: function() {
 if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
 if(!this.iefix && 
   (Prototype.Browser.IE) &&
   (Element.getStyle(this.update, 'position')=='absolute')) {
   new Insertion.After(this.update, 
    '<iframe id="' + this.update.id + '_iefix" '+
    'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
    'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
   this.iefix = $(this.update.id+'_iefix');
 }
 if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
},

fixIEOverlapping: function() {
 Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
 this.iefix.style.zIndex = 1;
 this.update.style.zIndex = 2;
 Element.show(this.iefix);
},

hide: function() {
 this.stopIndicator();
 if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
 if(this.iefix) Element.hide(this.iefix);
},

startIndicator: function() {
 if(this.options.indicator) Element.show(this.options.indicator);
},

stopIndicator: function() {
 if(this.options.indicator) Element.hide(this.options.indicator);
},

onKeyPress: function(event) {
 if(this.active)
   switch(event.keyCode) {
    case Event.KEY_TAB:
    case Event.KEY_RETURN:
      this.selectEntry();
      Event.stop(event);
    case Event.KEY_ESC:
      this.hide();
      this.active = false;
      Event.stop(event);
      return;
    case Event.KEY_LEFT:
    case Event.KEY_RIGHT:
      return;
    case Event.KEY_UP:
      this.markPrevious();
      this.render();
      Event.stop(event);
      return;
    case Event.KEY_DOWN:
      this.markNext();
      this.render();
      Event.stop(event);
      return;
   }
  else 
    if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN || 
      (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

 this.changed = true;
 this.hasFocus = true;

 if(this.observer) clearTimeout(this.observer);
   this.observer = 
     setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
},

activate: function() {
 this.changed = false;
 this.hasFocus = true;
 this.getUpdatedChoices();
},

onHover: function(event) {
 var element = Event.findElement(event, 'LI');
 if(this.index != element.autocompleteIndex) 
 {
     this.index = element.autocompleteIndex;
     this.render();
 }
 Event.stop(event);
},

onClick: function(event) {
 var element = Event.findElement(event, 'LI');
 this.index = element.autocompleteIndex;
 this.selectEntry();
 this.hide();
},

onBlur: function(event) {
 // needed to make click events working
 setTimeout(this.hide.bind(this), 250);
 this.hasFocus = false;
 this.active = false;     
}, 

render: function() {
 if(this.entryCount > 0) {
   for (var i = 0; i < this.entryCount; i++)
     this.index==i ? 
       Element.addClassName(this.getEntry(i),"selected") : 
       Element.removeClassName(this.getEntry(i),"selected");
   if(this.hasFocus) { 
     this.show();
     this.active = true;
   }
 } else {
   this.active = false;
   this.hide();
 }
},

markPrevious: function() {
 if(this.index > 0) this.index--
   else this.index = this.entryCount-1;
 this.getEntry(this.index).scrollIntoView(true);
},

markNext: function() {
 if(this.index < this.entryCount-1) this.index++
   else this.index = 0;
 this.getEntry(this.index).scrollIntoView(false);
},

getEntry: function(index) {
 return this.update.firstChild.childNodes[index];
},

getCurrentEntry: function() {
 return this.getEntry(this.index);
},

selectEntry: function() {
 this.active = false;
 this.updateElement(this.getCurrentEntry());
},

updateElement: function(selectedElement) {
 if (this.options.updateElement) {
   this.options.updateElement(selectedElement);
   return;
 }
 var value = '';
 if (this.options.select) {
   var nodes = $(selectedElement).select('.' + this.options.select) || [];
   if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
 } else
   value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');
 
 var bounds = this.getTokenBounds();
 if (bounds[0] != -1) {
   var newValue = this.element.value.substr(0, bounds[0]);
   var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
   if (whitespace)
     newValue += whitespace[0];
   this.element.value = newValue + value + this.element.value.substr(bounds[1]);
 } else {
   this.element.value = value;
 }
 this.oldElementValue = this.element.value;
 this.element.focus();
 
 if (this.options.afterUpdateElement)
   this.options.afterUpdateElement(this.element, selectedElement);
},

updateChoices: function(choices) {
 if(!this.changed && this.hasFocus) {
   this.update.innerHTML = choices;
   Element.cleanWhitespace(this.update);
   Element.cleanWhitespace(this.update.down());

   if(this.update.firstChild && this.update.down().childNodes) {
     this.entryCount = 
       this.update.down().childNodes.length;
     for (var i = 0; i < this.entryCount; i++) {
       var entry = this.getEntry(i);
       entry.autocompleteIndex = i;
       this.addObservers(entry);
     }
   } else { 
     this.entryCount = 0;
   }

   this.stopIndicator();
   this.index = 0;
   
   if(this.entryCount==1 && this.options.autoSelect) {
     this.selectEntry();
     this.hide();
   } else {
     this.render();
   }
 }
},

addObservers: function(element) {
 Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
 Event.observe(element, "click", this.onClick.bindAsEventListener(this));
},

onObserverEvent: function() {
 this.changed = false;   
 this.tokenBounds = null;
 if(this.getToken().length>=this.options.minChars) {
   this.getUpdatedChoices();
 } else {
   this.active = false;
   this.hide();
 }
 this.oldElementValue = this.element.value;
},

getToken: function() {
 var bounds = this.getTokenBounds();
 return this.element.value.substring(bounds[0], bounds[1]).strip();
},

getTokenBounds: function() {
 if (null != this.tokenBounds) return this.tokenBounds;
 var value = this.element.value;
 if (value.strip().empty()) return [-1, 0];
 var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
 var offset = (diff == this.oldElementValue.length ? 1 : 0);
 var prevTokenPos = -1, nextTokenPos = value.length;
 var tp;
 for (var index = 0, l = this.options.tokens.length; index < l; ++index) {
   tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
   if (tp > prevTokenPos) prevTokenPos = tp;
   tp = value.indexOf(this.options.tokens[index], diff + offset);
   if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
 }
 return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
}
});

Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS) {
var boundary = Math.min(newS.length, oldS.length);
for (var index = 0; index < boundary; ++index)
 if (newS[index] != oldS[index])
   return index;
return boundary;
};

Ajax.Autocompleter = Class.create(Autocompleter.Base, {
initialize: function(element, update, url, options) {
 this.baseInitialize(element, update, options);
 this.options.asynchronous  = true;
 this.options.onComplete    = this.onComplete.bind(this);
 this.options.defaultParams = this.options.parameters || null;
 this.url                   = url;
},

getUpdatedChoices: function() {
 this.startIndicator();
 
 var entry = encodeURIComponent(this.options.paramName) + '=' + 
   encodeURIComponent(this.getToken());

 this.options.parameters = this.options.callback ?
   this.options.callback(this.element, entry) : entry;

 if(this.options.defaultParams) 
   this.options.parameters += '&' + this.options.defaultParams;
 
 new Ajax.Request(this.url, this.options);
},

onComplete: function(request) {
 this.updateChoices(request.responseText);
}
});

//The local array autocompleter. Used when you'd prefer to
//inject an array of autocompletion options into the page, rather
//than sending out Ajax queries, which can be quite slow sometimes.
//
//The constructor takes four parameters. The first two are, as usual,
//the id of the monitored textbox, and id of the autocompletion menu.
//The third is the array you want to autocomplete from, and the fourth
//is the options block.
//
//Extra local autocompletion options:
//- choices - How many autocompletion choices to offer
//
//- partialSearch - If false, the autocompleter will match entered
//                 text only at the beginning of strings in the 
//                 autocomplete array. Defaults to true, which will
//                 match text at the beginning of any *word* in the
//                 strings in the autocomplete array. If you want to
//                 search anywhere in the string, additionally set
//                 the option fullSearch to true (default: off).
//
//- fullSsearch - Search anywhere in autocomplete array strings.
//
//- partialChars - How many characters to enter before triggering
//                a partial match (unlike minChars, which defines
//                how many characters are required to do any match
//                at all). Defaults to 2.
//
//- ignoreCase - Whether to ignore case when autocompleting.
//              Defaults to true.
//
//It's possible to pass in a custom function as the 'selector' 
//option, if you prefer to write your own autocompletion logic.
//In that case, the other options above will not apply unless
//you support them.

Autocompleter.Local = Class.create(Autocompleter.Base, {
initialize: function(element, update, array, options) {
 this.baseInitialize(element, update, options);
 this.options.array = array;
},

getUpdatedChoices: function() {
 this.updateChoices(this.options.selector(this));
},

setOptions: function(options) {
 this.options = Object.extend({
   choices: 10,
   partialSearch: true,
   partialChars: 2,
   ignoreCase: true,
   fullSearch: false,
   selector: function(instance) {
     var ret       = []; // Beginning matches
     var partial   = []; // Inside matches
     var entry     = instance.getToken();
     var count     = 0;

     for (var i = 0; i < instance.options.array.length &&  
       ret.length < instance.options.choices ; i++) { 

       var elem = instance.options.array[i];
       var foundPos = instance.options.ignoreCase ? 
         elem.toLowerCase().indexOf(entry.toLowerCase()) : 
         elem.indexOf(entry);

       while (foundPos != -1) {
         if (foundPos == 0 && elem.length != entry.length) { 
           ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" + 
             elem.substr(entry.length) + "</li>");
           break;
         } else if (entry.length >= instance.options.partialChars && 
           instance.options.partialSearch && foundPos != -1) {
           if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
             partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
               elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
               foundPos + entry.length) + "</li>");
             break;
           }
         }

         foundPos = instance.options.ignoreCase ? 
           elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) : 
           elem.indexOf(entry, foundPos + 1);

       }
     }
     if (partial.length)
       ret = ret.concat(partial.slice(0, instance.options.choices - ret.length))
     return "<ul>" + ret.join('') + "</ul>";
   }
 }, options || { });
}
});

//AJAX in-place editor and collection editor
//Full rewrite by Christophe Porteneuve <tdd@tddsworld.com> (April 2007).

//Use this if you notice weird scrolling problems on some browsers,
//the DOM might be a bit confused when this gets called so do this
//waits 1 ms (with setTimeout) until it does the activation
Field.scrollFreeActivate = function(field) {
setTimeout(function() {
 Field.activate(field);
}, 1);
}

Ajax.InPlaceEditor = Class.create({
initialize: function(element, url, options) {
 this.url = url;
 this.element = element = $(element);
 this.prepareOptions();
 this._controls = { };
 arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
 Object.extend(this.options, options || { });
 if (!this.options.formId && this.element.id) {
   this.options.formId = this.element.id + '-inplaceeditor';
   if ($(this.options.formId))
     this.options.formId = '';
 }
 if (this.options.externalControl)
   this.options.externalControl = $(this.options.externalControl);
 if (!this.options.externalControl)
   this.options.externalControlOnly = false;
 this._originalBackground = this.element.getStyle('background-color') || 'transparent';
 this.element.title = this.options.clickToEditText;
 this._boundCancelHandler = this.handleFormCancellation.bind(this);
 this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
 this._boundFailureHandler = this.handleAJAXFailure.bind(this);
 this._boundSubmitHandler = this.handleFormSubmission.bind(this);
 this._boundWrapperHandler = this.wrapUp.bind(this);
 this.registerListeners();
},
checkForEscapeOrReturn: function(e) {
 if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
 if (Event.KEY_ESC == e.keyCode)
   this.handleFormCancellation(e);
 else if (Event.KEY_RETURN == e.keyCode)
   this.handleFormSubmission(e);
},
createControl: function(mode, handler, extraClasses) {
 var control = this.options[mode + 'Control'];
 var text = this.options[mode + 'Text'];
 if ('button' == control) {
   var btn = document.createElement('input');
   btn.type = 'submit';
   btn.value = text;
   btn.className = 'editor_' + mode + '_button';
   if ('cancel' == mode)
     btn.onclick = this._boundCancelHandler;
   this._form.appendChild(btn);
   this._controls[mode] = btn;
 } else if ('link' == control) {
   var link = document.createElement('a');
   link.href = '#';
   link.appendChild(document.createTextNode(text));
   link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
   link.className = 'editor_' + mode + '_link';
   if (extraClasses)
     link.className += ' ' + extraClasses;
   this._form.appendChild(link);
   this._controls[mode] = link;
 }
},
createEditField: function() {
 var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
 var fld;
 if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
   fld = document.createElement('input');
   fld.type = 'text';
   var size = this.options.size || this.options.cols || 0;
   if (0 < size) fld.size = size;
 } else {
   fld = document.createElement('textarea');
   fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
   fld.cols = this.options.cols || 40;
 }
 fld.name = this.options.paramName;
 fld.value = text; // No HTML breaks conversion anymore
 fld.className = 'editor_field';
 if (this.options.submitOnBlur)
   fld.onblur = this._boundSubmitHandler;
 this._controls.editor = fld;
 if (this.options.loadTextURL)
   this.loadExternalText();
 this._form.appendChild(this._controls.editor);
},
createForm: function() {
 var ipe = this;
 function addText(mode, condition) {
   var text = ipe.options['text' + mode + 'Controls'];
   if (!text || condition === false) return;
   ipe._form.appendChild(document.createTextNode(text));
 };
 this._form = $(document.createElement('form'));
 this._form.id = this.options.formId;
 this._form.addClassName(this.options.formClassName);
 this._form.onsubmit = this._boundSubmitHandler;
 this.createEditField();
 if ('textarea' == this._controls.editor.tagName.toLowerCase())
   this._form.appendChild(document.createElement('br'));
 if (this.options.onFormCustomization)
   this.options.onFormCustomization(this, this._form);
 addText('Before', this.options.okControl || this.options.cancelControl);
 this.createControl('ok', this._boundSubmitHandler);
 addText('Between', this.options.okControl && this.options.cancelControl);
 this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
 addText('After', this.options.okControl || this.options.cancelControl);
},
destroy: function() {
 if (this._oldInnerHTML)
   this.element.innerHTML = this._oldInnerHTML;
 this.leaveEditMode();
 this.unregisterListeners();
},
enterEditMode: function(e) {
 if (this._saving || this._editing) return;
 this._editing = true;
 this.triggerCallback('onEnterEditMode');
 if (this.options.externalControl)
   this.options.externalControl.hide();
 this.element.hide();
 this.createForm();
 this.element.parentNode.insertBefore(this._form, this.element);
 if (!this.options.loadTextURL)
   this.postProcessEditField();
 if (e) Event.stop(e);
},
enterHover: function(e) {
 if (this.options.hoverClassName)
   this.element.addClassName(this.options.hoverClassName);
 if (this._saving) return;
 this.triggerCallback('onEnterHover');
},
getText: function() {
 return this.element.innerHTML;
},
handleAJAXFailure: function(transport) {
 this.triggerCallback('onFailure', transport);
 if (this._oldInnerHTML) {
   this.element.innerHTML = this._oldInnerHTML;
   this._oldInnerHTML = null;
 }
},
handleFormCancellation: function(e) {
 this.wrapUp();
 if (e) Event.stop(e);
},
handleFormSubmission: function(e) {
 var form = this._form;
 var value = $F(this._controls.editor);
 this.prepareSubmission();
 var params = this.options.callback(form, value) || '';
 if (Object.isString(params))
   params = params.toQueryParams();
 params.editorId = this.element.id;
 if (this.options.htmlResponse) {
   var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
   Object.extend(options, {
     parameters: params,
     onComplete: this._boundWrapperHandler,
     onFailure: this._boundFailureHandler
   });
   new Ajax.Updater({ success: this.element }, this.url, options);
 } else {
   var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
   Object.extend(options, {
     parameters: params,
     onComplete: this._boundWrapperHandler,
     onFailure: this._boundFailureHandler
   });
   new Ajax.Request(this.url, options);
 }
 if (e) Event.stop(e);
},
leaveEditMode: function() {
 this.element.removeClassName(this.options.savingClassName);
 this.removeForm();
 this.leaveHover();
 this.element.style.backgroundColor = this._originalBackground;
 this.element.show();
 if (this.options.externalControl)
   this.options.externalControl.show();
 this._saving = false;
 this._editing = false;
 this._oldInnerHTML = null;
 this.triggerCallback('onLeaveEditMode');
},
leaveHover: function(e) {
 if (this.options.hoverClassName)
   this.element.removeClassName(this.options.hoverClassName);
 if (this._saving) return;
 this.triggerCallback('onLeaveHover');
},
loadExternalText: function() {
 this._form.addClassName(this.options.loadingClassName);
 this._controls.editor.disabled = true;
 var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
 Object.extend(options, {
   parameters: 'editorId=' + encodeURIComponent(this.element.id),
   onComplete: Prototype.emptyFunction,
   onSuccess: function(transport) {
     this._form.removeClassName(this.options.loadingClassName);
     var text = transport.responseText;
     if (this.options.stripLoadedTextTags)
       text = text.stripTags();
     this._controls.editor.value = text;
     this._controls.editor.disabled = false;
     this.postProcessEditField();
   }.bind(this),
   onFailure: this._boundFailureHandler
 });
 new Ajax.Request(this.options.loadTextURL, options);
},
postProcessEditField: function() {
 var fpc = this.options.fieldPostCreation;
 if (fpc)
   $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
},
prepareOptions: function() {
 this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
 Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
 [this._extraDefaultOptions].flatten().compact().each(function(defs) {
   Object.extend(this.options, defs);
 }.bind(this));
},
prepareSubmission: function() {
 this._saving = true;
 this.removeForm();
 this.leaveHover();
 this.showSaving();
},
registerListeners: function() {
 this._listeners = { };
 var listener;
 $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
   listener = this[pair.value].bind(this);
   this._listeners[pair.key] = listener;
   if (!this.options.externalControlOnly)
     this.element.observe(pair.key, listener);
   if (this.options.externalControl)
     this.options.externalControl.observe(pair.key, listener);
 }.bind(this));
},
removeForm: function() {
 if (!this._form) return;
 this._form.remove();
 this._form = null;
 this._controls = { };
},
showSaving: function() {
 this._oldInnerHTML = this.element.innerHTML;
 this.element.innerHTML = this.options.savingText;
 this.element.addClassName(this.options.savingClassName);
 this.element.style.backgroundColor = this._originalBackground;
 this.element.show();
},
triggerCallback: function(cbName, arg) {
 if ('function' == typeof this.options[cbName]) {
   this.options[cbName](this, arg);
 }
},
unregisterListeners: function() {
 $H(this._listeners).each(function(pair) {
   if (!this.options.externalControlOnly)
     this.element.stopObserving(pair.key, pair.value);
   if (this.options.externalControl)
     this.options.externalControl.stopObserving(pair.key, pair.value);
 }.bind(this));
},
wrapUp: function(transport) {
 this.leaveEditMode();
 // Can't use triggerCallback due to backward compatibility: requires
 // binding + direct element
 this._boundComplete(transport, this.element);
}
});

Object.extend(Ajax.InPlaceEditor.prototype, {
dispose: Ajax.InPlaceEditor.prototype.destroy
});

Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
initialize: function($super, element, url, options) {
 this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
 $super(element, url, options);
},

createEditField: function() {
 var list = document.createElement('select');
 list.name = this.options.paramName;
 list.size = 1;
 this._controls.editor = list;
 this._collection = this.options.collection || [];
 if (this.options.loadCollectionURL)
   this.loadCollection();
 else
   this.checkForExternalText();
 this._form.appendChild(this._controls.editor);
},

loadCollection: function() {
 this._form.addClassName(this.options.loadingClassName);
 this.showLoadingText(this.options.loadingCollectionText);
 var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
 Object.extend(options, {
   parameters: 'editorId=' + encodeURIComponent(this.element.id),
   onComplete: Prototype.emptyFunction,
   onSuccess: function(transport) {
     var js = transport.responseText.strip();
     if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
       throw 'Server returned an invalid collection representation.';
     this._collection = eval(js);
     this.checkForExternalText();
   }.bind(this),
   onFailure: this.onFailure
 });
 new Ajax.Request(this.options.loadCollectionURL, options);
},

showLoadingText: function(text) {
 this._controls.editor.disabled = true;
 var tempOption = this._controls.editor.firstChild;
 if (!tempOption) {
   tempOption = document.createElement('option');
   tempOption.value = '';
   this._controls.editor.appendChild(tempOption);
   tempOption.selected = true;
 }
 tempOption.update((text || '').stripScripts().stripTags());
},

checkForExternalText: function() {
 this._text = this.getText();
 if (this.options.loadTextURL)
   this.loadExternalText();
 else
   this.buildOptionList();
},

loadExternalText: function() {
 this.showLoadingText(this.options.loadingText);
 var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
 Object.extend(options, {
   parameters: 'editorId=' + encodeURIComponent(this.element.id),
   onComplete: Prototype.emptyFunction,
   onSuccess: function(transport) {
     this._text = transport.responseText.strip();
     this.buildOptionList();
   }.bind(this),
   onFailure: this.onFailure
 });
 new Ajax.Request(this.options.loadTextURL, options);
},

buildOptionList: function() {
 this._form.removeClassName(this.options.loadingClassName);
 this._collection = this._collection.map(function(entry) {
   return 2 === entry.length ? entry : [entry, entry].flatten();
 });
 var marker = ('value' in this.options) ? this.options.value : this._text;
 var textFound = this._collection.any(function(entry) {
   return entry[0] == marker;
 }.bind(this));
 this._controls.editor.update('');
 var option;
 this._collection.each(function(entry, index) {
   option = document.createElement('option');
   option.value = entry[0];
   option.selected = textFound ? entry[0] == marker : 0 == index;
   option.appendChild(document.createTextNode(entry[1]));
   this._controls.editor.appendChild(option);
 }.bind(this));
 this._controls.editor.disabled = false;
 Field.scrollFreeActivate(this._controls.editor);
}
});

//**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
//**** This only  exists for a while,  in order to  let ****
//**** users adapt to  the new API.  Read up on the new ****
//**** API and convert your code to it ASAP!            ****

Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
if (!options) return;
function fallback(name, expr) {
 if (name in options || expr === undefined) return;
 options[name] = expr;
};
fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
 options.cancelLink == options.cancelButton == false ? false : undefined)));
fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
 options.okLink == options.okButton == false ? false : undefined)));
fallback('highlightColor', options.highlightcolor);
fallback('highlightEndColor', options.highlightendcolor);
};

Object.extend(Ajax.InPlaceEditor, {
DefaultOptions: {
 ajaxOptions: { },
 autoRows: 3,                                // Use when multi-line w/ rows == 1
 cancelControl: 'link',                      // 'link'|'button'|false
 cancelText: 'cancel',
 clickToEditText: 'Click to edit',
 externalControl: null,                      // id|elt
 externalControlOnly: false,
 fieldPostCreation: 'activate',              // 'activate'|'focus'|false
 formClassName: 'inplaceeditor-form',
 formId: null,                               // id|elt
 highlightColor: '#ffff99',
 highlightEndColor: '#ffffff',
 hoverClassName: '',
 htmlResponse: true,
 loadingClassName: 'inplaceeditor-loading',
 loadingText: 'Loading...',
 okControl: 'button',                        // 'link'|'button'|false
 okText: 'ok',
 paramName: 'value',
 rows: 1,                                    // If 1 and multi-line, uses autoRows
 savingClassName: 'inplaceeditor-saving',
 savingText: 'Saving...',
 size: 0,
 stripLoadedTextTags: false,
 submitOnBlur: false,
 textAfterControls: '',
 textBeforeControls: '',
 textBetweenControls: ''
},
DefaultCallbacks: {
 callback: function(form) {
   return Form.serialize(form);
 },
 onComplete: function(transport, element) {
   // For backward compatibility, this one is bound to the IPE, and passes
   // the element directly.  It was too often customized, so we don't break it.
   new Effect.Highlight(element, {
     startcolor: this.options.highlightColor, keepBackgroundImage: true });
 },
 onEnterEditMode: null,
 onEnterHover: function(ipe) {
   ipe.element.style.backgroundColor = ipe.options.highlightColor;
   if (ipe._effect)
     ipe._effect.cancel();
 },
 onFailure: function(transport, ipe) {
   alert('Error communication with the server: ' + transport.responseText.stripTags());
 },
 onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
 onLeaveEditMode: null,
 onLeaveHover: function(ipe) {
   ipe._effect = new Effect.Highlight(ipe.element, {
     startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
     restorecolor: ipe._originalBackground, keepBackgroundImage: true
   });
 }
},
Listeners: {
 click: 'enterEditMode',
 keydown: 'checkForEscapeOrReturn',
 mouseover: 'enterHover',
 mouseout: 'leaveHover'
}
});

Ajax.InPlaceCollectionEditor.DefaultOptions = {
loadingCollectionText: 'Loading options...'
};

//Delayed observer, like Form.Element.Observer, 
//but waits for delay after last key input
//Ideal for live-search fields

Form.Element.DelayedObserver = Class.create({
initialize: function(element, delay, callback) {
 this.delay     = delay || 0.5;
 this.element   = $(element);
 this.callback  = callback;
 this.timer     = null;
 this.lastValue = $F(this.element); 
 Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
},
delayedListener: function(event) {
 if(this.lastValue == $F(this.element)) return;
 if(this.timer) clearTimeout(this.timer);
 this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
 this.lastValue = $F(this.element);
},
onTimerEvent: function() {
 this.timer = null;
 this.callback(this.element, $F(this.element));
}
});





//script.aculo.us slider.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

//Copyright (c) 2005-2007 Marty Haught, Thomas Fuchs 
//
//script.aculo.us is freely distributable under the terms of an MIT-style license.
//For details, see the script.aculo.us web site: http://script.aculo.us/

if (!Control) var Control = { };

//options:
//axis: 'vertical', or 'horizontal' (default)
//
//callbacks:
//onChange(value)
//onSlide(value)
Control.Slider = Class.create({
initialize: function(handle, track, options) {
 var slider = this;
 
 if (Object.isArray(handle)) {
   this.handles = handle.collect( function(e) { return $(e) });
 } else {
   this.handles = [$(handle)];
 }
 
 this.track   = $(track);
 this.options = options || { };

 this.axis      = this.options.axis || 'horizontal';
 this.increment = this.options.increment || 1;
 this.step      = parseInt(this.options.step || '1');
 this.range     = this.options.range || $R(0,1);
 
 this.value     = 0; // assure backwards compat
 this.values    = this.handles.map( function() { return 0 });
 this.spans     = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
 this.options.startSpan = $(this.options.startSpan || null);
 this.options.endSpan   = $(this.options.endSpan || null);

 this.restricted = this.options.restricted || false;

 this.maximum   = this.options.maximum || this.range.end;
 this.minimum   = this.options.minimum || this.range.start;

 // Will be used to align the handle onto the track, if necessary
 this.alignX = parseInt(this.options.alignX || '0');
 this.alignY = parseInt(this.options.alignY || '0');
 
 this.trackLength = this.maximumOffset() - this.minimumOffset();

 this.handleLength = this.isVertical() ? 
   (this.handles[0].offsetHeight != 0 ? 
     this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) : 
   (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth : 
     this.handles[0].style.width.replace(/px$/,""));

 this.active   = false;
 this.dragging = false;
 this.disabled = false;

 if (this.options.disabled) this.setDisabled();

 // Allowed values array
 this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
 if (this.allowedValues) {
   this.minimum = this.allowedValues.min();
   this.maximum = this.allowedValues.max();
 }

 this.eventMouseDown = this.startDrag.bindAsEventListener(this);
 this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
 this.eventMouseMove = this.update.bindAsEventListener(this);

 // Initialize handles in reverse (make sure first handle is active)
 this.handles.each( function(h,i) {
   i = slider.handles.length-1-i;
   slider.setValue(parseFloat(
     (Object.isArray(slider.options.sliderValue) ? 
       slider.options.sliderValue[i] : slider.options.sliderValue) || 
      slider.range.start), i);
   h.makePositioned().observe("mousedown", slider.eventMouseDown);
 });
 
 this.track.observe("mousedown", this.eventMouseDown);
 document.observe("mouseup", this.eventMouseUp);
 document.observe("mousemove", this.eventMouseMove);
 
 this.initialized = true;
},
dispose: function() {
 var slider = this;    
 Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
 Event.stopObserving(document, "mouseup", this.eventMouseUp);
 Event.stopObserving(document, "mousemove", this.eventMouseMove);
 this.handles.each( function(h) {
   Event.stopObserving(h, "mousedown", slider.eventMouseDown);
 });
},
setDisabled: function(){
 this.disabled = true;
},
setEnabled: function(){
 this.disabled = false;
},  
getNearestValue: function(value){
 if (this.allowedValues){
   if (value >= this.allowedValues.max()) return(this.allowedValues.max());
   if (value <= this.allowedValues.min()) return(this.allowedValues.min());
   
   var offset = Math.abs(this.allowedValues[0] - value);
   var newValue = this.allowedValues[0];
   this.allowedValues.each( function(v) {
     var currentOffset = Math.abs(v - value);
     if (currentOffset <= offset){
       newValue = v;
       offset = currentOffset;
     } 
   });
   return newValue;
 }
 if (value > this.range.end) return this.range.end;
 if (value < this.range.start) return this.range.start;
 return value;
},
setValue: function(sliderValue, handleIdx){
 if (!this.active) {
   this.activeHandleIdx = handleIdx || 0;
   this.activeHandle    = this.handles[this.activeHandleIdx];
   this.updateStyles();
 }
 handleIdx = handleIdx || this.activeHandleIdx || 0;
 if (this.initialized && this.restricted) {
   if ((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
     sliderValue = this.values[handleIdx-1];
   if ((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
     sliderValue = this.values[handleIdx+1];
 }
 sliderValue = this.getNearestValue(sliderValue);
 this.values[handleIdx] = sliderValue;
 this.value = this.values[0]; // assure backwards compat
 
 this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] = 
   this.translateToPx(sliderValue);
 
 this.drawSpans();
 if (!this.dragging || !this.event) this.updateFinished();
},
setValueBy: function(delta, handleIdx) {
 this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta, 
   handleIdx || this.activeHandleIdx || 0);
},
translateToPx: function(value) {
 return Math.round(
   ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) * 
   (value - this.range.start)) + "px";
},
translateToValue: function(offset) {
 return ((offset/(this.trackLength-this.handleLength) * 
   (this.range.end-this.range.start)) + this.range.start);
},
getRange: function(range) {
 var v = this.values.sortBy(Prototype.K); 
 range = range || 0;
 return $R(v[range],v[range+1]);
},
minimumOffset: function(){
 return(this.isVertical() ? this.alignY : this.alignX);
},
maximumOffset: function(){
 return(this.isVertical() ? 
   (this.track.offsetHeight != 0 ? this.track.offsetHeight :
     this.track.style.height.replace(/px$/,"")) - this.alignY : 
   (this.track.offsetWidth != 0 ? this.track.offsetWidth : 
     this.track.style.width.replace(/px$/,"")) - this.alignX);
},  
isVertical:  function(){
 return (this.axis == 'vertical');
},
drawSpans: function() {
 var slider = this;
 if (this.spans)
   $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
 if (this.options.startSpan)
   this.setSpan(this.options.startSpan,
     $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
 if (this.options.endSpan)
   this.setSpan(this.options.endSpan, 
     $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
},
setSpan: function(span, range) {
 if (this.isVertical()) {
   span.style.top = this.translateToPx(range.start);
   span.style.height = this.translateToPx(range.end - range.start + this.range.start);
 } else {
   span.style.left = this.translateToPx(range.start);
   span.style.width = this.translateToPx(range.end - range.start + this.range.start);
 }
},
updateStyles: function() {
 this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
 Element.addClassName(this.activeHandle, 'selected');
},
startDrag: function(event) {
 if (Event.isLeftClick(event)) {
   if (!this.disabled){
     this.active = true;
     
     var handle = Event.element(event);
     var pointer  = [Event.pointerX(event), Event.pointerY(event)];
     var track = handle;
     if (track==this.track) {
       var offsets  = Position.cumulativeOffset(this.track); 
       this.event = event;
       this.setValue(this.translateToValue( 
        (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
       ));
       var offsets  = Position.cumulativeOffset(this.activeHandle);
       this.offsetX = (pointer[0] - offsets[0]);
       this.offsetY = (pointer[1] - offsets[1]);
     } else {
       // find the handle (prevents issues with Safari)
       while((this.handles.indexOf(handle) == -1) && handle.parentNode) 
         handle = handle.parentNode;
         
       if (this.handles.indexOf(handle)!=-1) {
         this.activeHandle    = handle;
         this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
         this.updateStyles();
         
         var offsets  = Position.cumulativeOffset(this.activeHandle);
         this.offsetX = (pointer[0] - offsets[0]);
         this.offsetY = (pointer[1] - offsets[1]);
       }
     }
   }
   Event.stop(event);
 }
},
update: function(event) {
if (this.active) {
   if (!this.dragging) this.dragging = true;
   this.draw(event);
   if (Prototype.Browser.WebKit) window.scrollBy(0,0);
   Event.stop(event);
}
},
draw: function(event) {
 var pointer = [Event.pointerX(event), Event.pointerY(event)];
 var offsets = Position.cumulativeOffset(this.track);
 pointer[0] -= this.offsetX + offsets[0];
 pointer[1] -= this.offsetY + offsets[1];
 this.event = event;
 this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
 if (this.initialized && this.options.onSlide)
   this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
},
endDrag: function(event) {
 if (this.active && this.dragging) {
   this.finishDrag(event, true);
   Event.stop(event);
 }
 this.active = false;
 this.dragging = false;
},  
finishDrag: function(event, success) {
 this.active = false;
 this.dragging = false;
 this.updateFinished();
},
updateFinished: function() {
 if (this.initialized && this.options.onChange) 
   this.options.onChange(this.values.length>1 ? this.values : this.value, this);
 this.event = null;
}
});