// JavaScript Document
function hide() {
	for (var i=1;i<7;i++) {
		if (document.getElementById("hdmenu"+i))
			document.getElementById("hdmenu"+i).style.visibility = "hidden";
	}	
}

function rollover(num) {
	hide();
	if(document.getElementById(num))
		document.getElementById(num).style.visibility = "visible";
}