function expand(obj){
if(document.getElementById){
var one = document.getElementById(obj);
var two = document.getElementById("menubox").getElementsByTagName("div"); 
if(one.style.display != "block"){
for (var i=0; i<two.length; i++){
if (two[i].className=="submenu")
two[i].style.display = "none";
}
one.style.display = "block";
}else
{
one.style.display = "none";
}
}
}

function popup(url, newWindow, x, y){
var size="width="+x+",height="+y+",left="+25+",top="+25;
remote = open(url, newWindow, size);
}