function showMenu(menu) {
	if(document.getElementById(menu + "_menu") != null) {
		clearTimeout(document.getElementById(menu + "_menu").timerId);
		document.getElementById(menu + "_menu").style.display = "block";
	}
	document.getElementById(menu + "_btn").src = "/templates/images/navigation/" + menu + "-over.gif";
}
function hideMenu(menu, isHome) {
	if(document.getElementById(menu + "_menu") != null) {
		document.getElementById(menu + "_menu").timerId = setTimeout("doHideMenu('" + menu + "', " + isHome + ")", 250);
	} else {
		if(!isHome) document.getElementById(menu + "_btn").src = "/templates/images/navigation/" + menu + ".gif";
	}
}
function doHideMenu(menu, isHome) {
	if(document.getElementById(menu + "_menu") != null) document.getElementById(menu + "_menu").style.display = "none";
	if(!isHome) document.getElementById(menu + "_btn").src = "/templates/images/navigation/" + menu + ".gif";
}