Fx.Accordion=new Class({Extends:Fx.Elements,options:{fixedHeight:false,fixedWidth:false,display:0,show:false,height:true,width:false,opacity:true,alwaysHide:false,trigger:"click",initialDisplayFx:true,returnHeightToAuto:true},initialize:function(){var c=Array.link(arguments,{container:Element.type,options:Object.type,togglers:$defined,elements:$defined});this.parent(c.elements,c.options);this.togglers=$$(c.togglers);this.previous=-1;this.internalChain=new Chain();if(this.options.alwaysHide){this.options.wait=true}if($chk(this.options.show)){this.options.display=false;this.previous=this.options.show}if(this.options.start){this.options.display=false;this.options.show=false}this.effects={};if(this.options.opacity){this.effects.opacity="fullOpacity"}if(this.options.width){this.effects.width=this.options.fixedWidth?"fullWidth":"offsetWidth"}if(this.options.height){this.effects.height=this.options.fixedHeight?"fullHeight":"scrollHeight"}for(var b=0,a=this.togglers.length;b<a;b++){this.addSection(this.togglers[b],this.elements[b])}this.elements.each(function(e,d){if(this.options.show===d){this.fireEvent("active",[this.togglers[d],e])}else{for(var f in this.effects){e.setStyle(f,0)}}},this);if($chk(this.options.display)||this.options.initialDisplayFx===false){this.display(this.options.display,this.options.initialDisplayFx)}if(this.options.fixedHeight!==false){this.options.returnHeightToAuto=false}this.addEvent("complete",this.internalChain.callChain.bind(this.internalChain))},addSection:function(e,c){e=document.id(e);c=document.id(c);var f=this.togglers.contains(e);this.togglers.include(e);this.elements.include(c);var a=this.togglers.indexOf(e);var b=this.display.bind(this,a);e.store("accordion:display",b);e.addEvent(this.options.trigger,b);if(this.options.height){c.setStyles({"padding-top":0,"border-top":"none","padding-bottom":0,"border-bottom":"none"})}if(this.options.width){c.setStyles({"padding-left":0,"border-left":"none","padding-right":0,"border-right":"none"})}c.fullOpacity=1;if(this.options.fixedWidth){c.fullWidth=this.options.fixedWidth}if(this.options.fixedHeight){c.fullHeight=this.options.fixedHeight}c.setStyle("overflow","hidden");if(!f){for(var d in this.effects){c.setStyle(d,0)}}return this},removeSection:function(e,b){var a=this.togglers.indexOf(e);var c=this.elements[a];var d=function(){this.togglers.erase(e);this.elements.erase(c);this.detach(e)}.bind(this);if(this.now==a||b!=undefined){this.display($pick(b,a-1>=0?a-1:0)).chain(d)}else{d()}return this},detach:function(b){var a=function(c){c.removeEvent(this.options.trigger,c.retrieve("accordion:display"))}.bind(this);if(!b){this.togglers.each(a)}else{a(b)}return this},display:function(a,b){if(!this.check(a,b)){return this}b=$pick(b,true);a=($type(a)=="element")?this.elements.indexOf(a):a;if(a==this.previous&&!this.options.alwaysHide){return this}if(this.options.returnHeightToAuto){var d=this.elements[this.previous];if(d&&!this.selfHidden){for(var c in this.effects){d.setStyle(c,d[this.effects[c]])}}}if((this.timer&&this.options.wait)||(a===this.previous&&!this.options.alwaysHide)){return this}this.previous=a;var e={};this.elements.each(function(h,g){e[g]={};var f;if(g!=a){f=true}else{if(this.options.alwaysHide&&((h.offsetHeight>0&&this.options.height)||h.offsetWidth>0&&this.options.width)){f=true;this.selfHidden=true}}this.fireEvent(f?"background":"active",[this.togglers[g],h]);for(var j in this.effects){e[g][j]=f?0:h[this.effects[j]]}},this);this.internalChain.clearChain();this.internalChain.chain(function(){if(this.options.returnHeightToAuto&&!this.selfHidden){var f=this.elements[a];if(f){f.setStyle("height","auto")}}}.bind(this));return b?this.start(e):this.set(e)}});var Accordion=new Class({Extends:Fx.Accordion,initialize:function(){this.parent.apply(this,arguments);var a=Array.link(arguments,{container:Element.type});this.container=a.container},addSection:function(c,b,e){c=document.id(c);b=document.id(b);var d=this.togglers.contains(c);var a=this.togglers.length;if(a&&(!d||e)){e=$pick(e,a-1);c.inject(this.togglers[e],"before");b.inject(c,"after")}else{if(this.container&&!d){c.inject(this.container);b.inject(this.container)}}return this.parent.apply(this,arguments)}});