var inmenu=false;
var lastmenu=0;
//function Menu(current) 
//{
//   if (!document.getElementById(current)) return;
//   inmenu=true;
//   oldmenu=lastmenu;
//   lastmenu=current;
//   if (oldmenu) Erase(oldmenu);
//   m=document.getElementById("menu-" + current);
//   box=document.getElementById(current);      
//   box.style.left= m.offsetLeft;   
//   //box.style.top= m.offsetTop + m.offsetHeight;   
//   box.style.visibility="visible";
//   //m.style.backgroundColor="Aqua";
//   //box.style.backgroundColor="Aqua";
//   box.style.width="100px";
//}

function Menu(current) 
{
   var horizontaloffset = 1;
   if (!document.getElementById(current)) return;
   inmenu=true;
   oldmenu=lastmenu;
   lastmenu=current;
   if (oldmenu) Erase(oldmenu);
   m=document.getElementById("menu-" + current);
   box=document.getElementById(current);      
   box.x = getposOffset(m,"left");
   box.y = getposOffset(m,"top");
   box.style.left = box.x + "px";      
   box.style.visibility="visible";
   //box.style.width="100px";
}


function VMenu(current) 
{
   var horizontaloffset = 1;
   if (!document.getElementById(current)) return;
   inmenu=true;
   oldmenu=lastmenu;
   lastmenu=current;
   if (oldmenu) Erase(oldmenu);
   m=document.getElementById("menu-" + current);
   box=document.getElementById(current);
   box.x = getposOffset(m, "left");
   box.y = getposOffset(m, "top");
   box.style.left=box.x + m.offsetWidth + horizontaloffset + "px"
   box.style.top=box.y + "px"
   box.style.visibility="visible";
   //box.style.width="100px";
}

function Erase(current) {
   if (!document.getElementById(current)) return;
   if (inmenu && lastmenu==current) {
     return;
   }
   m=document.getElementById("menu-" + current);
   box=document.getElementById(current);
   box.style.visibility="hidden";
   //m.style.backgroundColor="Silver";
}
function Timeout(current) {
   inmenu=false;
   window.setTimeout("Erase('" + current + "')",500) ;
}
function Highlight(menu,item) {
   if (!document.getElementById) return;
   inmenu=true;
   lastmenu=menu;
   obj=document.getElementById(item);
   //obj.style.backgroundColor="Silver";
}
function UnHighlight(menu,item) {
   if (!document.getElementById) return;
   Timeout(menu);
   obj=document.getElementById(item);
   //obj.style.backgroundColor="Aqua";
}

function getposOffset(what, offsettype)
{
var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
var parentEl=what.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;
}
return totaloffset;
}