// script.aculo.us effects.js v1.7.1_beta1, Mon Mar 12 14:40:50 +0100 2007

// Copyright (c) 2005-2007 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(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) { }
										};
										
										/*--------------------------------------------------------------------------*/
										
										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(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(
										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: 2.0
										}, 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) {
										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 (
										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++) 
										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:   8.0,   // seconds
										fps:        100,   // 100= assume 66fps max.
										sync:       false, // true for combining
										from:       0.0,
										to:         1.0,
										delay:      2.0,
										queue:      'parallel'
										}
										
										Effect.Base = function() {};
										Effect.Base.prototype = {
										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.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(options,'beforeSetup')+
										(this.setup ? 'this.setup();':'')+ 
										codeForEvent(options,'afterSetup')+
										'};if(this.state=="running"){'+
										'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
										'this.position=pos;'+
										codeForEvent(options,'beforeUpdate')+
										(this.update ? 'this.update(pos);':'')+
										codeForEvent(options,'afterUpdate')+
										'}}');
										
										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.totalTime,
										frame = Math.round(pos * this.totalFrames);
										if(frame > this.currentFrame) {
										this.render(pos);
										this.currentFrame = frame;
										}
										}
										},
										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(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();
										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: 8.0, 
										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: 3.2,
										from: 0,
										transition: Effect.Transitions.flicker,
										afterFinishInternal: function(effect) {
										new Effect.Scale(effect.element, 1, { 
										duration: 2.4, 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: 4.0,
										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: 0.40, afterFinishInternal: function(effect) {
										new Effect.Move(effect.element,
										{ x: -40, y: 0, duration: 0.8,  afterFinishInternal: function(effect) {
										new Effect.Move(effect.element,
										{ x:  40, y: 0, duration: 0.8,  afterFinishInternal: function(effect) {
										new Effect.Move(effect.element,
										{ x: -40, y: 0, duration: 0.8,  afterFinishInternal: function(effect) {
										new Effect.Move(effect.element,
										{ x:  40, y: 0, duration: 0.8,  afterFinishInternal: function(effect) {
										new Effect.Move(effect.element,
										{ x: -20, y: 0, duration: 0.40, 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: 0.08, 
										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: 16.0, 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] = '';
										});
										}
										} 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], 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 + Math.round(
										((transform.targetValue - transform.originalValue) * position) * 1000)/1000 + transform.unit;
										this.element.setStyle(style, true);
										}
										});
										
										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 = document.createElement('div');
										element.innerHTML = '<div style="' + this + '"></div>';
										var style = element.childNodes[0].style, styleRules = $H();
										
										Element.CSS_PROPERTIES.each(function(property){
										if(style[property]) styleRules[property] = style[property]; 
										});
										if(Prototype.Browser.IE && 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;
										};
										
										['getInlineOpacity','forceRerendering','setContentZoom',
										'collectTextNodes','collectTextNodesIgnoreClass','morph'].each( 
										function(f) { Element.Methods[f] = Element[f]; }
										);
										
										Element.Methods.visualEffect = function(element, effect, options) {
										s = effect.dasherize().camelize();
										effect_class = s.charAt(0).toUpperCase() + s.substring(1);
										new Effect[effect_class](element, options);
										return $(element);
										};
										
Element.addMethods();