TB.widget.SimpleScroll=new function(){var Y=YAHOO.util;var defConfig={delay:2,speed:20,startDelay:2,scrollItemCount:1}
this.decorate=function(container,config){container=$(container);config=TB.applyIf(config||{},defConfig);var handle={};var scrollTimeId=null,pause=false;var onScrollEvent=new Y.CustomEvent("onScroll",handle,false,Y.CustomEvent.FLAT);if(config.onScroll){onScrollEvent.subscribe(config.onScroll);}else{onScrollEvent.subscribe(function(){for(var i=0;i<config.scrollItemCount;i++){container.appendChild(container.getElementsByTagName('li')[0]);}});}
var scroll=function(){if(pause)return;container.scrollTop+=2;var lh=config.lineHeight||container.getElementsByTagName('li')[0].offsetHeight;if(container.scrollTop%lh<=1){clearInterval(scrollTimeId);onScrollEvent.fire();container.scrollTop=0;setTimeout(start,config.delay*1000);}}
var start=function(){var lh=config.lineHeight||container.getElementsByTagName('li')[0].offsetHeight;if(container.scrollHeight-container.offsetHeight>=lh)
scrollTimeId=setInterval(scroll,config.speed);}
$E.on(container,'mouseover',function(){pause=true;});$E.on(container,'mouseout',function(){pause=false;});setTimeout(start,config.startDelay*1000);TB.apply(handle,{subscribeOnScroll:function(func,override){if(override===true&&onScrollEvent.subscribers.length>0)
onScrollEvent.unsubscribeAll();onScrollEvent.subscribe(func);}});handle.onScroll=handle.subscribeOnScroll;return handle;}};