hideTimer=setTimeout('',0);
activeMenu=null;
activeAanroep=null;



function openMenu(menu) {
    clearTimeout(hideTimer);
    closeMenu();

	document.getElementById('divMenu' + menu).style.visibility = "visible";

	TopObjects('hidden');
	activeMenu = menu;
    
    return false;
}

function closeMenu() {
	if(activeMenu!=null)
	{
        document.getElementById('divMenu' + activeMenu).style.visibility = "hidden";

		TopObjects('visible');
        activeMenu = null;
    }
}

function TopObjects(sVisibility) {
	oSelects = document.getElementsByTagName('SELECT');
	if (oSelects.length > 0) {
		for (i = 0; i < oSelects.length; i++) {
			oSelects[i].style.visibility = sVisibility;
		}
	}

	oObjects = document.getElementsByTagName('OBJECT');
	if (oObjects.length > 0) {
		for (i = 0; i < oObjects.length; i++) {
			oObjects[i].style.visibility = sVisibility;
		}
	}
}