function buildMenus()
{
  var ultags=document.getElementById("myMenu").getElementsByTagName("ul")
	for (var t=0; t<ultags.length; t++)
	{
		if (ultags[t].parentNode.parentNode.id=="myMenu")
		{ //if this is a first level submenu
			ultags[t].style.top=ultags[t].parentNode.offsetHeight + "px";
		}
		else
		{ //else if this is a sub level menu (ul)
		  ultags[t].style.left=ultags[t-1].getElementsByTagName("a")[0].offsetWidth + "px";
		}
		
    ultags[t].parentNode.onmouseover = function() { this.getElementsByTagName("ul")[0].style.visibility="visible"; }
    ultags[t].parentNode.onmouseout = function() { this.getElementsByTagName("ul")[0].style.visibility="hidden"; }
	}
}

/* init the system */

if (window.addEventListener)
{
	window.addEventListener("load", buildMenus, false)
}
else if (window.attachEvent)
{
	window.attachEvent("onload", buildMenus)
}