var QTabs=new Class({options:{flexHeight:false,def_tab:0,cookie:0,autoplay:0,scrolling:0,delay:3000,duration:500,transition:'Quad',easing:'easeInOut',onActive:function(container,idx){var content=this.tcontents[idx];var s=container.getSize();var cw=s.x;if(this.options.flexHeight){s=content.getSize();container.setStyle('height',s.y+'px');}
var d=(this.curTab>=0?this.options.duration:1);var sdir=this.options.scrolling;if(sdir=='a'){if(idx>this.curTab){sdir='lr';}else{sdir='rl';}}
var lft=[0,0];switch(sdir){case'lr':lft=[-cw,0];break;case'rl':lft=[cw,0];break;}
this.fxOn=true;if(this.options.transition=='linear'){var t=Fx.Transitions[this.options.transition];}else{var t=Fx.Transitions[this.options.transition][this.options.easing];}
content.set('morph',{duration:d,transition:t});content.morph({top:[0,0],left:lft,opacity:[1,1]});this.fxEnd.delay(d,this);this.tabs[idx].addClass('open').removeClass('closed');},onBackground:function(tab,content){content.setStyle('display','none');tab.addClass('closed').removeClass('open');}},initialize:function(m_id,options){this.setOptions(options);this.tabs=$('qtabs-'+m_id).getElements('span')
this.container=$('current-'+m_id);this.tcontents=this.container.getElements('div.qtcontent');for(var i=0,l=this.tabs.length;i<l;i++){var tab=this.tabs[i];tab.addEvent('click',this.display.bind(this,i));tab.addEvent('mouseenter',this.mouseEnter.bind(this,i));tab.addEvent('mouseleave',this.mouseLeave.bind(this,i));}
this.curTab=-1;if(getCookie("tab_"+this.container.id)&&this.options.cookie){this.display(getCookie("tab_"+this.container.id));}else{this.display(this.options.def_tab);}},display:function(i){if(i<0||i>=this.tabs.length){i=0;}
if(this.curTab==i||this.fxOn){return;}
$clear(this.timer);for(var c=0,l=this.tabs.length;c<l;c++){if(c!=i){this.tabs[c].addClass('closed').removeClass('open');}
this.tcontents[c].setOpacity(0);this.tcontents[c].addClass('closed').removeClass('open');}
this.fireEvent('onActive',[this.container,i]);this.curTab=i;this.tcontents[i].addClass('open').removeClass('closed');setCookie("tab_"+this.container.id,i);},mouseEnter:function(i){this.tabs[i].addClass('hover');},mouseLeave:function(i){this.tabs[i].removeClass('hover');},fxEnd:function(){this.fxOn=false;if(this.options.autoplay){var i=this.curTab+1;if(i>=this.tcontents.length){i=0;}
this.timer=this.display.delay(this.options.delay,this,i);}}});QTabs.implement(new Events);QTabs.implement(new Options);