(function(){var transitions={slideIn:function(curTab,newTab,f){newTab.setStyles({zIndex:1,display:'block',opacity:0});var morph={opacity:1},l='offsetWidth',t='offsetHeight';switch(f){case'left':morph.left=[-newTab[l],0];morph.top=0;break;case'top':morph.left=0
morph.top=[-newTab[t],0]
break;case'right':morph.left=[newTab[l],0]
morph.top=0
break;default:morph.left=0
morph.top=[newTab[t],0]
break;}
newTab.morph(morph).get('morph').chain(function(){curTab.setStyle('display','none');newTab.setStyle('z-index',0);this.fireEvent('complete')}.pass(null,this))},slideOut:function(curTab,newTab,f){curTab.setStyle('z-index',1);newTab.setStyles({zIndex:0,display:'block',opacity:1,left:0,top:0});var morph={opacity:0},l='offsetWidth',t='offsetHeight';switch(f){case'left':morph.left=[0,-curTab[l]];morph.top=0;break;case'top':morph.left=0
morph.top=[0,-curTab[t]]
break;case'right':morph.left=[0,curTab[l]]
morph.top=0
break;default:morph.left=0
morph.top=[0,curTab[t]]
break;}
curTab.morph(morph);this.fireEvent('complete')},fade:function(curTab,newTab){if(curTab){curTab.setStyles({zIndex:0,left:0,top:0});newTab.setStyles({display:'block',opacity:0,zIndex:1,left:0,top:0}).
morph({opacity:1}).get('morph').chain(function(){curTab.setStyles({opacity:0,display:'none'});newTab.setStyle('z-index',0);this.fireEvent('complete')}.pass(null,this))}
else{newTab.set({styles:{display:'block'}}).morph({opacity:[.5,1]});this.fireEvent('complete')}},move:function(curTab,newTab,f){if(curTab){var obj=[],options=this.options,opacity=options.opacity||.7,property=['top','bottom'].indexOf(f)!=-1?'offsetHeight':'offsetWidth',offset=curTab[property],l=[curTab,newTab],props,morph;if(['left','top'].indexOf(f)!=-1)offset=-offset;newTab.setStyles({display:'block',opacity:1});switch(f){case'left':props={left:curTab.offsetLeft-newTab.offsetWidth,top:curTab.offsetTop};break;case'top':props={top:curTab.offsetTop-curTab.offsetHeight,left:curTab.offsetLeft};break
case'right':props={left:curTab.offsetLeft+newTab.offsetWidth,top:curTab.offsetTop};break
case'bottom':props={top:curTab.offsetTop+curTab.offsetHeight,left:curTab.offsetLeft};break}
newTab.setStyles(props);if(property=='offsetHeight')l.each(function(p,index){obj[index]={opacity:[opacity,1],top:[p.offsetTop,p.offsetTop-offset]}});else l.each(function(p,index){obj[index]={opacity:[opacity,1],left:[p.offsetLeft,p.offsetLeft-offset]}});if(!options.useOpacity)Object.each(obj,function(k){delete k.opacity});l.each(function(p,index){p.morph(obj[index]);if(index==1)p.get('morph').chain(function(){l[0].setStyles({display:'none',left:0,top:0});this.fireEvent('complete')}.pass(null,this))},this)}else{newTab.setStyles({opacity:1,display:'block'});this.fireEvent('complete')}}};Tab.prototype.plugins.Random=new Class({options:{directions:['left','right','top','bottom']},fx:{link:'chain',duration:1000},transitions:{},Implements:[Options,Events],initialize:function(panels,options,fx){fx=Object.merge(this.fx,fx);options=this.setOptions(options).addTransition(transitions).options;options.directions=Array.from(this.options.directions);var tr=Array.from(this.options.transitions||Object.keys(this.transitions));this.options.transitions=[];tr.each(function(v){if(v!='fade')this.options.directions.each(function(d){options.transitions.push(v+'-'+d)});else options.transitions.push(v)},this);this.panels=panels;panels.each(function(el){el.setStyle('display','block').set({styles:{width:el.getStyle('width'),position:'absolute',zIndex:0,display:'none'},morph:fx})});var panel=panels[0];this.container=panel.setStyle('display','block').getParent().setStyles({position:'absolute',overflow:'hidden',height:panel.offsetHeight,width:panel.offsetWidth});this.current=0},add:function(el){el.setStyle('display','block').set({styles:{width:el.getStyle('width'),position:'absolute',zIndex:0,display:'none'},morph:this.fx});return this},move:function(newTab,curTab){var options=this.options,transition=options.transitions[this.current];this.ct=curTab;this.nt=newTab;if(curTab)curTab.setStyles({left:0,top:0});var parts=transition.split('-');this.transitions[parts[0]](curTab,newTab,parts[1]);this.current=options.random?Number.random(0,options.transitions.length-1):(this.current+1)%options.transitions.length;this.fireEvent('change',arguments).fireEvent('resize',newTab);},addTransition:function(tr,fn){if(typeof tr=='object')Object.each(tr,function(fn,key){this.transitions[key]=fn.pass(null,this)},this);else this.transitions[tr]=fn.pass(null,this);return this}})})();