/* topmenuscript.js */
// Detacom Projekten BV, Sittard
// André E. Veltstra
// Laatste wijziging: 13/07/2005

var elmt = new Object();
var elmtSubs = new Object();
var elmtParent = new Object();
var topmenu_lastmenu = new String();

function showMenu(elmtId) {
	if (topmenu_lastmenu != elmtId) {
		hideMenu();
	}
	elmt = document.getElementById('t_menuitem'+elmtId);
	if ((elmt!=undefined)&&(elmt!=null)) {
		/* show selection of menuitem */
		/* show menudropdown */
		elmtParent = elmt.parentNode;
		elmtSubs = elmtParent.getElementsByTagName("DIV");
		if ((elmtSubs!=undefined)&&(elmtSubs.length!=0)) {
			topmenu_lastmenu = elmtId;
			elmtSubs[0].style.display = 'block';
		}
	}
}

function hideMenu() {

if (topmenu_lastmenu.length!=0) {
	elmt = document.getElementById('t_menuitem'+topmenu_lastmenu);
	if ((elmt!=undefined)&&(elmt!=null)) {
		/* show selection of menuitem */
		/* show menudropdown */
		elmtParent = elmt.parentNode;
		elmtSubs = elmtParent.getElementsByTagName("DIV");
		if ((elmtSubs!=undefined)&&(elmtSubs.length!=0)) {
			elmtSubs[0].style.display = 'none';
		}
	}
}
}