//Ctrl+Enter结束
$(function(){

	//主题轮播开始
	$("#ztlb_ul").html("<div id='wrap_cycle'>"+$("#ztlb_ul").html()+$("#ztlb_ul").html()+"</div>");
	var wrap=$("#wrap_cycle"),i=1,timeL,timeR,cur,state="left",cN,per=parseInt($("#wrap_cycle li").width())+parseInt($("#wrap_cycle li").css("marginLeft"));
	cN=$("#wrap_cycle li").size()
	wrap.width(per*cN)
	play=function(dir){		
		$("#bar_l").unbind("click",play);
		$("#bar_r").unbind("click",play);
		if(dir=="left"){
			cur=parseInt(wrap.css("left"))
			wrap.animate({"left":cur-per},500,function(){i++;if(i==cN/2+1){wrap.css("left",0);i=1}})
		}
		else{
			if(state=="left"){i==1;wrap.css("left",-cN/2*per);}
			if(i==1)wrap.css("left",-cN/2*per)
			cur=parseInt(wrap.css("left"))
			wrap.animate({"left":cur+per},500,function(){i++;if(i==cN/2+1){i=1;}})
		}
	}
	timeL=setInterval("play('left')",3000)
	
	$("#bar_l").bind("click",function(e){
		e.preventDefault();							  
		if(timeL!=undefined)clearInterval(timeL)
		if(timeR!=undefined)clearInterval(timeR)
		play('right')
		state="right"
		timeR=setInterval("play('right')",3000)
	})
	$("#bar_r").bind("click",function(e){
		e.preventDefault();							  
		if(timeL!=undefined)clearInterval(timeL)
		if(timeR!=undefined)clearInterval(timeR)
		play('left')
		state="left"
		timeL=setInterval("play('left')",3000)
	})
	
	$("#ztlb_ul").hover(
		function(){
			if(timeL!=undefined)clearInterval(timeL)
			if(timeR!=undefined)clearInterval(timeR)
		},
		function(){
			if(state=="left"){timeL=setInterval("play('left')",3000)}
			if(state=="right"){timeR=setInterval("play('right')",3000)}
		}
	)
	//主题轮播结束

})