var parentNode;

function initMenu() {


	var navRoot = document.getElementById("navRoot");
	if (navRoot.childNodes) {
		
		for (i = 0; i < navRoot.childNodes.length; i++) {

		var node = navRoot.childNodes[i];
		
		if (node.nodeName == 'UL' || node.nodeName == 'ul') {
			initUL(node);
			}
	    	}
	}
}


function initUL(node) {

		for (i = 0; i < node.childNodes.length; i++) {
				var node2 = node.childNodes[i];
				
				if ((node2.nodeName == "LI") || (node2.nodeName == "li")) {
					node2.onmouseover = function() {
						this.className += "over";
					}

					node2.onmouseout = function() {
						this.className = this.className.replace("over", "");
					}
					parentNode = node2;
				} 
				else if ((node2.nodeName == "UL") || (node2.nodeName == "ul")) {
				
					node2.onmouseover = function() {
						
						this.className += "over";
						
					}

					node2.onmouseout = function() {
						this.className = this.className.replace("over", "");
					}
					parentNode.appendChild(node2);
				}
			}
}

function showMenu(menuid) {
	document.getElementById(menuid).style.display = "block";
}

function hideMenu(menuid) {
	document.getElementById(menuid).style.display = "none";
}