// script.aculo.us effects.js v1.7.0, Fri Jan 19 19:16:36 CET 2007

// Copyright (c) 2005, 2006 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
// Justin Palmer (http://encytemedia.com/)
// Mark Pilgrim (http://diveintomark.org/)
// Martin Bialasinki
// 
// 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/ 

// converts rgb() and #xxx to #xxxxxx format, 
// returns self (or first argument) if not convertable 
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(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
 return element;
}

Element.getOpacity = function(element){
 return $(element).getStyle('opacity');
}

Element.setOpacity = function(element, value){
 return $(element).setStyle({opacity:value});
}

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) { }
};

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

Array.prototype.call = function() {
 var args = arguments;
 this.each(function(f){ f.apply(this, args) });
}

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

var Effect = {
 _elementDoesNotExistError: {
  name: 'ElementDoesNotExistError',
  message: 'The specified DOM element does not exist, but is required for this effect to operate'
 },
 tagifyText: function(element) {
  if(typeof Builder == 'undefined')
   throw("Effect.tagifyText requires including script.aculo.us' builder.js library");
   
  var tagifyStyle = 'position:relative';
  if(/MSIE/.test(navigator.userAgent) && !window.opera) tagifyStyle += ';zoom:1';
  
  element = $(element);
  $A(element.childNodes).each( function(child) {
   if(child.nodeType==3) {
    child.nodeValue.toArray().each( function(character) {
     element.insertBefore(
      Builder.node('span',{style: tagifyStyle},
       character == ' ' ? String.fromCharCode(160) : character), 
       child);
    });
    Element.remove(child);
   }
  });
 },
 multiple: function(element, effect) {
  var elements;
  if(((typeof element == 'object') || 
    (typeof element == 'function')) && 
    (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);
 }
};

var Effect2 = Effect; // deprecated

/* ------------- transitions ------------- */

Effect.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) {
  return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
 },
 wobble: function(pos) {
  return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
 },
 pulse: function(pos, pulses) { 
  pulses = pulses || 5; 
  return (
   Math.round((pos % (1/pulses)) * pulses) == 0 ? 
      ((pos * pulses * 2) - Math.floor(pos * pulses * 2)) : 
    1 - ((pos * pulses * 2) - Math.floor(pos * pulses * 2))
   );
 },
 none: function(pos) {
  return 0;
 },
 full: function(pos) {
  return 1;
 }
};

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

Effect.ScopedQueue = Class.create();
Object.extend(Object.extend(Effect.ScopedQueue.prototype, 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 = (typeof effect.options.queue == 'string') ? 
   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++) 
   if(this.effects[i]) this.effects[i].loop(timePos);
 }
});

Effect.Queues = {
 instances: $H(),
 get: function(queueName) {
  if(typeof queueName != 'string') return queueName;
  
  if(!this.instances[queueName])
   this.instances[queueName] = new Effect.ScopedQueue();
   
  return this.instances[queueName];
 }
}
Effect.Queue = Effect.Queues.get('global');

Effect.DefaultOptions = {
 transition: Effect.Transitions.sinoidal,
 duration:  1.0,  // seconds
 fps:    60.0, // max. 60fps due to Effect.Queue implementation
 sync:    false, // true for combining
 from:    0.0,
 to:     1.0,
 delay:   0.0,
 queue:   'parallel'
}

Effect.Base = function() {};
Effect.Base.prototype = {
 position: null,
 start: function(options) {
  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.event('beforeStart');
  if(!this.options.sync)
   Effect.Queues.get(typeof this.options.queue == 'string' ? 
    '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.finishOn - this.startOn);
   var frame = Math.round(pos * this.options.fps * this.options.duration);
   if(frame > this.currentFrame) {
    this.render(pos);
    this.currentFrame = frame;
   }
  }
 },
 render: function(pos) {
  if(this.state == 'idle') {
   this.state = 'running';
   this.event('beforeSetup');
   if(this.setup) this.setup();
   this.event('afterSetup');
  }
  if(this.state == 'running') {
   if(this.options.transition) pos = this.options.transition(pos);
   pos *= (this.options.to-this.options.from);
   pos += this.options.from;
   this.position = pos;
   this.event('beforeUpdate');
   if(this.update) this.update(pos);
   this.event('afterUpdate');
  }
 },
 cancel: function() {
  if(!this.options.sync)
   Effect.Queues.get(typeof this.options.queue == 'string' ? 
    '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(typeof this[property] != 'function') data[property] = this[property];
  return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
 }
}

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

Effect.Opacity = Class.create();
Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {
 initialize: function(element) {
  this.element = $(element);
  if(!this.element) throw(Effect._elementDoesNotExistError);
  // make this work on IE on elements without 'layout'
  if(/MSIE/.test(navigator.userAgent) && !window.opera && (!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();
Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {
 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() {
  // Bug in Opera: Opera returns the "real" position of a static element or
  // relative element that does not have top/left explicitly set.
  // ==> Always set top and left for position relative elements in your stylesheets 
  // (to 0 if you do not need them) 
  this.element.makePositioned();
  this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
  this.originalTop = parseFloat(this.element.getStyle('top') || '0');
  if(this.options.mode == 'absolute') {
   // absolute movement, so we need to calc deltaX and deltaY
   this.options.x = this.options.x - this.originalLeft;
   this.options.y = this.options.y - this.originalTop;
  }
 },
 update: function(position) {
  this.element.setStyle({
   left: Math.round(this.options.x * position + this.originalLeft) + 'px',
   top: Math.round(this.options.y * position + this.originalTop) + '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();
Object.extend(Object.extend(Effect.Scale.prototype, Effect.Base.prototype), {
 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 = Math.round(width) + 'px';
  if(this.options.scaleY) d.height = Math.round(height) + '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();
Object.extend(Object.extend(Effect.Highlight.prototype, Effect.Base.prototype), {
 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+(Math.round(this._base[i]+(this._delta[i]*position)).toColorPart()); }.bind(this)) });
 },
 finish: function() {
  this.element.setStyle(Object.extend(this.oldStyle, {
   backgroundColor: this.options.restorecolor
  }));
 }
});

Effect.ScrollTo = Class.create();
Object.extend(Object.extend(Effect.ScrollTo.prototype, Effect.Base.prototype), {
 initialize: function(element) {
  this.element = $(element);
  this.start(arguments[1] || {});
 },
 setup: function() {
  Position.prepare();
  var offsets = Position.cumulativeOffset(this.element);
  if(this.options.offset) offsets[1] += this.options.offset;
  var max = window.innerHeight ? 
   window.height - window.innerHeight :
   document.body.scrollHeight - 
    (document.documentElement.clientHeight ? 
     document.documentElement.clientHeight : document.body.clientHeight);
  this.scrollStart = Position.deltaY;
  this.delta = (offsets[1] > max ? max : offsets[1]) - this.scrollStart;
 },
 update: function(position) {
  Position.prepare();
  window.scrollTo(Position.deltaX, 
   this.scrollStart + (position*this.delta));
 }
});

/* ------------- 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 oldStyle = {
  top: element.getStyle('top'),
  left: element.getStyle('left') };
  return new Effect.Move(element, 
   { x: 20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
  new Effect.Move(effect.element,
   { x: -40, y: 0, duration: 0.1, afterFinishInternal: function(effect) {
  new Effect.Move(effect.element,
   { x: 40, y: 0, duration: 0.1, afterFinishInternal: function(effect) {
  new Effect.Move(effect.element,
   { x: -40, y: 0, duration: 0.1, afterFinishInternal: function(effect) {
  new Effect.Move(effect.element,
   { x: 40, y: 0, duration: 0.1, afterFinishInternal: function(effect) {
  new Effect.Move(effect.element,
   { x: -20, y: 0, duration: 0.05, 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');
 return new Effect.Scale(element, window.opera ? 0 : 1,
  Object.extend({ scaleContent: false, 
  scaleX: false, 
  scaleMode: 'box',
  scaleFrom: 100,
  restoreAfterFinish: true,
  beforeStartInternal: 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().setStyle({bottom: oldInnerBottom});
   effect.element.down().undoPositioned();
  }
  }, 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();
Object.extend(Object.extend(Effect.Morph.prototype, Effect.Base.prototype), {
 initialize: function(element) {
  this.element = $(element);
  if(!this.element) throw(Effect._elementDoesNotExistError);
  var options = Object.extend({
   style: {}
  }, arguments[1] || {});
  if (typeof options.style == 'string') {
   if(options.style.indexOf(':') == -1) {
    var cssText = '', selector = '.' + options.style;
    $A(document.styleSheets).reverse().each(function(styleSheet) {
     if (styleSheet.cssRules) cssRules = styleSheet.cssRules;
     else if (styleSheet.rules) cssRules = styleSheet.rules;
     $A(cssRules).reverse().each(function(rule) {
      if (selector == rule.selectorText) {
       cssText = rule.style.cssText;
       throw $break;
      }
     });
     if (cssText) throw $break;
    });
    this.style = cssText.parseStyle();
    options.afterFinishInternal = function(effect){
     effect.element.addClassName(effect.options.style);
     effect.transforms.each(function(transform) {
      if(transform.style != 'opacity')
       effect.element.style[transform.style.camelize()] = '';
     });
    }
   } else this.style = options.style.parseStyle();
  } else this.style = $H(options.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].underscore().dasherize(), value = pair[1], unit = null;

   if(value.parseColor('#zzzzzz') != '#zzzzzz') {
    value = value.parseColor();
    unit = 'color';
   } else if(property == 'opacity') {
    value = parseFloat(value);
    if(/MSIE/.test(navigator.userAgent) && !window.opera && (!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 $H({ 
    style: property, 
    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 = $H(), value = null;
  this.transforms.each(function(transform){
   value = transform.unit=='color' ?
    $R(0,2).inject('#',function(m,v,i){
     return m+(Math.round(transform.originalValue[i]+
      (transform.targetValue[i] - transform.originalValue[i])*position)).toColorPart() }) : 
    transform.originalValue + Math.round(
     ((transform.targetValue - transform.originalValue) * position) * 1000)/1000 + transform.unit;
   style[transform.style] = value;
  });
  this.element.setStyle(style);
 }
});

Effect.Transform = Class.create();
Object.extend(Effect.Transform.prototype, {
 initialize: function(tracks){
  this.tracks = [];
  this.options = arguments[1] || {};
  this.addTracks(tracks);
 },
 addTracks: function(tracks){
  tracks.each(function(track){
   var data = $H(track).values().first();
   this.tracks.push($H({
    ids:   $H(track).keys().first(),
    effect: Effect.Morph,
    options: { style: data }
   }));
  }.bind(this));
  return this;
 },
 play: function(){
  return new Effect.Parallel(
   this.tracks.map(function(track){
    var elements = [$(track.ids) || $$(track.ids)].flatten();
    return elements.map(function(e){ return new track.effect(e, Object.extend({ sync:true }, track.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.prototype.parseStyle = function(){
 var element = Element.extend(document.createElement('div'));
 element.innerHTML = '<div style="' + this + '"></div>';
 var style = element.down().style, styleRules = $H();
 
 Element.CSS_PROPERTIES.each(function(property){
  if(style[property]) styleRules[property] = style[property]; 
 });
 if(/MSIE/.test(navigator.userAgent) && !window.opera && this.indexOf('opacity') > -1) {
  styleRules.opacity = this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1];
 }
 return styleRules;
};

Element.morph = function(element, style) {
 new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || {}));
 return element;
};

['setOpacity','getOpacity','getInlineOpacity','forceRerendering','setContentZoom',
 'collectTextNodes','collectTextNodesIgnoreClass','morph'].each( 
 function(f) { Element.Methods[f] = Element[f]; }
);

Element.Methods.visualEffect = function(element, effect, options) {
 s = effect.gsub(/_/, '-').camelize();
 effect_class = s.charAt(0).toUpperCase() + s.substring(1);
 new Effect[effect_class](element, options);
 return $(element);
};

Element.addMethods();