function DisplayMenu (id) {
	/*for (var i = 0; i<10; i++) {
		var element = document.getElementById("menu_"+i);
		if (element) {
			element.style.display = "none";
		}
	}*/
	document.getElementById("menu_"+id).style.display = "block";
}
function HideMenu (id) {
	document.getElementById("menu_"+id).style.display = "none";
}