function expand(o)
{
var imgid=o.id;
var vid="v"+imgid;
var display=document.getElementById(vid).style.display;
var img=document.getElementById(imgid).src;
/**È¡plusÃû×Ö**/
var  imgg   =   img.split("//")[1].split("/")   
var  imgname   =   imgg[imgg.length-1].split(".")[0];
imgname=imgname+".gif";
if(imgname =="plus.gif")
{
document.getElementById(imgid).src="/minus.gif";
}
else
{
document.getElementById(imgid).src="/plus.gif";
}

if(display=="block")
{
//changemenu(ulid, false); 
document.getElementById(vid).style.display="none";
}
else{ 
//document.getElementById(ulid).filters.alpha.opacity = 0; 
document.getElementById(vid).style.display = "block" ;
//changemenu(ulid, true); 
//document.getElementById(ulid).style.display="block";
}
}