function makevisible(cur,which){
if (which==0)
cur.filters.alpha.opacity=80
else
cur.filters.alpha.opacity=100
}

<!--
function pop_up(url) {

          self.name = "opener";
          remote = open(url, "gallery", "width=830,height=670,left=50,top=50");
        }
//-->

function timeMsg()
{
var t=setTimeout("alertMsg()",0);
}
function alertMsg()
{
//javascript:collapse1.slidedown()
javascript:toggle('slide1');
}