var myTimer;

function showMenu(which) {
	hideMenus();
	clearTimeout(myTimer);
	if(which.childNodes[0].childNodes.length > 1) which.childNodes[0].style.visibility = 'visible';
}

function hideMenu(which) {
	myTimer = setTimeout("hideMenus()", 400);
}

function hideMenus() {
	for(i=0;i<document.getElementById('menuContainer').childNodes.length;i++) {
		document.getElementById('menuContainer').childNodes[i].childNodes[0].style.visibility='hidden';
	}
}