var sNavigationId = "gNavigation";

function MenuManager() {

	var oMenu = document.getElementById(sNavigationId);
	
	if ( oMenu ) {
		arrMenuEntries = oMenu.getElementsByTagName("li");

		for ( i=0; i < arrMenuEntries.length; i++ ) {
			li = arrMenuEntries[i];
			link = li.getElementsByTagName("a")[0];
			child = li.getElementsByTagName("ol")[0];
			
			if ( child && link ) {
				link.child = child;
				
				link.onmouseover = function() {
					this.child.style["display"] = "block";
				}
				link.onmouseout = function() {
					this.child.style["display"] = "none";
				}
				
				child.onmouseover = function() {
					this.style["display"] = "block";
				}
				child.onmouseout = function() {
					this.style["display"] = "none";
				}
			}
		}
	}
}

if( document.all )
	window.onload = MenuManager;