function hid(){
     for(var k=1;k<5;k++)
     {
           var ul=document.getElementById("ul"+k).style.display="none";
     }
}
function show(num){
         //hid();
       //var num=li.id;
      var ul= document.getElementById("ul"+num);
      // ul.className="jscss";
   // if(ul.style.display=="block") return;
  ul.style.display="block";
  ul.style.zIndex="999";
 ul.style.position="absolute"; 
  ul.style.left="0";
 ul.style.background="url(/Images/drop_panel_backing.png) no-repeat  bottom";
 ul.style.height="auto";
 var li=ul.childNodes;
 for(var i=0;i<li.length;i++)
 {
    li[i].style.background="none";
    li[i].style.fontSize="14px";
   // li[i].style.borderBottomStyle="1px solid dotted";
 }
}