function menuHide(sm) {
	sm.style.display = 'none';
}

function menuShow(sm) {
	var parUl = sm.parentNode;
	while (true) {
		if (parUl.nodeName.toLowerCase() == 'ul') break;
		parUl = parUl.parentNode;
	}
	if (parUl.id == 'menu') {
		sm.style.top = sm.parentNode.offsetHeight + 'px';
		sm.style.left = sm.parentNode.offsetLeft + 'px';
	} else {
		sm.style.top = sm.parentNode.offsetTop + 'px';
		sm.style.left = (sm.parentNode.offsetLeft + sm.parentNode.offsetWidth) + 'px';
	}
	sm.style.display = 'block';
}

function MenuOver(ev) {
	var mm = document.getElementById('menu_1');
	mm.style.display = 'block'
	/*
	if (!ev) var ev = window.event;
	var from = ev.srcElement || ev.target;
	alert(ev.srcElement);
	while (from) {
		if (from.nodeName.toLowerCase() == 'li') break;
		from = from.parentNode;
	}
	if (!from) return;
	
	var sm = from.getElementsByTagName('ul')[0];
	if (sm) {
		menuShow(sm);
	}
	*/
}

function MenuOut(ev) {
	var mm = document.getElementById('menu_1');
	mm.style.display = 'none';
	/*if (!ev) var ev = window.event;
	var from = ev.srcElement || ev.target;
	var to = ev.toElement || ev.relatedTarget;
	
	while (from) {
		if (from.nodeName.toLowerCase() == 'li') break;
		from = from.parentNode;
	}
	if (!from) return;
	
	while (to) {
		if (to.nodeName.toLowerCase() == 'ul') break;
		to = to.parentNode;
	}
	
	if (!to) DropdownMenuInit(document.getElementById('menu'));
	
	var sm = from.getElementsByTagName('ul')[0];
	if (sm) {
		if (to && sm.id == to.id) return;
		menuHide(sm);
	}
	*/
}

function DropdownMenuInit(element) {
	var chld = element.childNodes;
	var sm = chld[i].getElementsByTagName('ul')[0];
	/*for (var i = 0; i < chld.length; i++) {
		alert(chld[i]);
		//var sm = chld[i].getElementsByTagName('ul')[0];
		//~ if (sm) {
			//~ menuHide(sm);
			//~ DropdownMenuInit(sm);
		//~ }
	}*/
}

function ActivateMenu(id) {
	var m = document.getElementById(id);
	var mm = document.getElementById('menu_1');
	menuHide(mm);
	//DropdownMenuInit(m);
	m.onmouseover = function(ev) {MenuOver(ev);};
	m.onmouseout = function(ev) {MenuOut(ev);};
}