function setab(name,cursel,n,link){
	  for(i=1;i<=n;i++){
			var menu=document.getElementById(name+i);
			var con=document.getElementById("con"+name+i);
			menu.className=i==cursel?"hover":"";
			con.style.display=i==cursel?"block":"none";
	}
		if(link!=null && link!="")document.getElementById("Link"+name).href=link;
  }
	
	function chang_img(n){ 
		document.all.img_b4[1].src="static/images/tt_01.jpg";
		document.all.img_b4[2].src="static/images/dx_01.jpg";
	
		if (n==1){document.all.img_b4[1].src="static/images/tt_02.jpg";}
	
		if (n==2){document.all.img_b4[2].src="static/images/tt_02.jpg";} 
	}
  //显示与隐藏列表 显示更多
function showList(id,num){
	if(num == 1){
		document.getElementById(id).style.display = "block";
	}
	else{
		document.getElementById(id).style.display = "none";
	}
}