function showSub2(){
	if (document.all) {
		document.all["nav2"].style.visibility = "visible";
	} else {
		document.getElementById("nav2").style.visibility = "visible";
	}
	setTimeout("hide()", 4000);
}

function hide(){
	if (document.all) {
		document.all["nav2"].style.visibility = "hidden";
	} else {
		document.getElementById("nav2").style.visibility = "hidden";
	}
}