function displayObj (anId, aBool) {
	document.getElementById(anId).style.display = (aBool ? "block" : "none");
	return true;
}

function setObj (anId, aValue) {
	document.getElementById(anId).value = aValue;
	return true;	
}

function toggleSubmenu(aNum) {
	if (selMenu >= 0)
		displayObj ( 'submenu' + selMenu, false );
	displayObj ( 'submenu' + aNum, (aNum != selMenu) );
	selMenu = (aNum != selMenu) ? aNum : -1;
}

function toggleSubmenus(aNum) {
	if (selMenus >= 0)
		displayObj ( 'submenus' + selMenus, false );
	displayObj ( 'submenus' + aNum, (aNum != selMenus) );
	selMenus = (aNum != selMenus) ? aNum : -1;
}

function toggleSubmenuss(aNum) {
	if (selMenuss >= 0)
		displayObj ( 'submenuss' + selMenuss, false );
	displayObj ( 'submenuss' + aNum, (aNum != selMenuss) );
	selMenuss = (aNum != selMenuss) ? aNum : -1;
}