/*图层变幻*/
      function setTab(name,startnum,endnum,cursel,obj){
		obj.t=setTimeout(function(){
			for(i=startnum;i<=endnum;i++){
				var menu=document.getElementById(name+i);
				var con=document.getElementById("con_"+name+"_"+i);
				var more=document.getElementById("more_"+name+"_"+i);
				menu.className=i==cursel?"bg1 cn2 float_left":"bg2 cn3 float_left";
				con.style.display=i==cursel?"block":"none";
				more.style.display=i==cursel?"block":"none";
			}
		},0)
		//当鼠标在规定时间内移开时，停止切换
		obj.onmouseout=function(){clearTimeout(this.t)}
	}
	
	
	
		function setTab1(name,startnum,endnum,cursel,obj){
		obj.t=setTimeout(function(){
			for(i=startnum;i<=endnum;i++){
				var menu=document.getElementById(name+i);
				var con=document.getElementById("con_"+name+"_"+i);
				menu.className=i==cursel?"bg1 cn2 float_left":"bg2 cn3 float_left";
				con.style.display=i==cursel?"block":"none";
			}
		},0)
		//当鼠标在规定时间内移开时，停止切换
		obj.onmouseout=function(){clearTimeout(this.t)}
	}
	
	
	    function setTab2(name,startnum,endnum,cursel,obj){
		obj.t=setTimeout(function(){
			for(i=startnum;i<=endnum;i++){
				var menu=document.getElementById(name+i);
				var con=document.getElementById("con_"+name+"_"+i);
				var more=document.getElementById("more_"+name+"_"+i);
				menu.className=i==cursel?"bg7 cn2 float_left":"bg6 cn3 float_left";
				con.style.display=i==cursel?"block":"none";
				more.style.display=i==cursel?"block":"none";
			}
		},0)
		//当鼠标在规定时间内移开时，停止切换
		obj.onmouseout=function(){clearTimeout(this.t)}
	}
	
	
		function setTab3(name,startnum,endnum,cursel,obj){
		obj.t=setTimeout(function(){
			for(i=startnum;i<=endnum;i++){
				var menu=document.getElementById(name+i);
				var con=document.getElementById("con_"+name+"_"+i);
				menu.className=i==cursel?"bg7 cn2 float_left":"bg6 cn3 float_left";
				con.style.display=i==cursel?"block":"none";
			}
		},0)
		//当鼠标在规定时间内移开时，停止切换
		obj.onmouseout=function(){clearTimeout(this.t)}
	}




       function setTab4(name,startnum,endnum,cursel,obj){
		obj.t=setTimeout(function(){
			for(i=startnum;i<=endnum;i++){
				var menu=document.getElementById(name+i);
				var con=document.getElementById("con_"+name+"_"+i);
				var img=document.getElementById("img_"+name+"_"+i);
				var more=document.getElementById("more_"+name+"_"+i);
				menu.className=i==cursel?"bg20 cn2 float_left":"bg21 cn3 float_left";
				con.style.display=i==cursel?"block":"none";
				img.src=i==cursel?"/images/snfw_pic_tc01.gif":"/images/snfw_pic_tc02.gif";
				more.style.display=i==cursel?"block":"none";
			}
		},0)
		//当鼠标在规定时间内移开时，停止切换
		obj.onmouseout=function(){clearTimeout(this.t)}
		}