cancelTimeout = true;

function openSubmenu(id) {
	closeSubmenu();
	
	if(document.getElementById('submenu_'+id)) {
		document.getElementById('submenu_'+id).style.display = 'inline';
	}
}

function closeSubmenu() {
	var id=1;
	
	if(cancelTimeout == false) {
		while(document.getElementById('submenu_'+id)) {
			document.getElementById('submenu_'+id).style.display = 'none';
			id++;
		}
	}
}

function timedHide() {
	cancelTimeout = false;
	setTimeout('closeSubmenu();', 1000);
}