window.onload = function() {
activateMenu('menu');
}	

activateMenu = function(nav) {
if (document.all && document.getElementById(nav).currentStyle) { 
	var navroot = document.getElementById(nav);
	var lis = navroot.getElementsByTagName("LI");
	for (i=0; i<lis.length; i++) {
	if (lis[i].lastChild.tagName == "UL") {
	lis[i].onmouseover = function() {
	this.lastChild.style.display = "block";
	}
	lis[i].onmouseout = function() {
	this.lastChild.style.display = "none";
	}
	}
	}
}
}