function getNames(obj,name,tij)
{ 
   var p = document.getElementById(obj);
   var plist = p.getElementsByTagName(tij);
   var rlist = new Array();
   for(i=0;i<plist.length;i++)
   {
    if(plist[i].getAttribute("name") == name)
    {
     rlist[rlist.length] = plist[i];
    }
   }
   return rlist;
}
function butong_net(obj,name)
   {
    var p = obj.parentNode.getElementsByTagName("td");
    var p1 = getNames(name,"f","div");
    for(i=0;i<p1.length;i++)
    {
     if(obj==p[i])
     {
      p[i].className = "s";
      p1[i].className = "dis";
     }
     else
     {
      p[i].className = "";
      p1[i].className = "undis";
     }
    }
   }