菜单式收缩

 

<div>

<ul style="padding-top:0px;padding-bottom:0px;">
<li id="btype3" class="bg" style="cursor:pointer;" onclick="showtb(3)"><div class="font1"><a href="#">公司研究</a></div></li>
</ul>
<ul id="tbtype3" style="padding-top:0px;padding-bottom:0px;">
<li> <a href="StocksList.aspx?type=all" target="main">全部报告</a> | <a href="InstiStocksList.aspx?type=all" target="main">机构分类</a></li>
<li> <a href="PlateStocksCompare.aspx?type=all" target="main">行业分类</a> | <a href="SearchStocksList.aspx?type=all" target="main" style="color:#FE0101;">高级搜索</a></li>
</ul>

<div>

js里的

function showtb(tbnum){
 whichEl = eval("tbtype" + tbnum);
 //var o=document.getElementById("tbtype2");
 //alert(o);
 //var ob3=document.getElementById("tbtype2");
  //ob3.style.backgroud="url(../images/vip_08.gif)";
  //alert(ob3.style.backgroudImage);
     //ob3.style.backgroudColor="#000000"; 
  if (whichEl.style.display == "none"){
  eval("tbtype" + tbnum + ".style.display=\"\";");
  //var ob=document.getElementById("btype2");
  //ob.style.backgroud="url(../images/vip_21b.gif)";
 
  }else{
     eval("tbtype" + tbnum + ".style.display=\"none\";");
     //var ob=document.getElementById(whichEl.substring(1,whichEl.length-1));
  //ob.style.backgroud="url(../images/vip_21.gif)";
  //var ob=document.getElementById("btype2");
  //ob.style.backgroud="url(../images/vip_21b.gif)";
  }
  }