menu_status = new Array();

function hideAllsubMenus(){
	document.getElementById('nblsubmenu1').className = 'hidden';
	menu_status['nblsubmenu1'] = 'hidden';
	document.getElementById('nblsubmenu2').className = 'hidden';
	menu_status['nblsubmenu2'] = 'hidden';
	document.getElementById('nblsubmenu3').className = 'hidden';
	menu_status['nblsubmenu3'] = 'hidden';
}

function showHide(theid){
	if (document.getElementById) {
		var switch_id = document.getElementById(theid)
		if(menu_status[theid] != 'visible') {
			switch_id.className = 'visible';
			menu_status[theid] = 'visible';
		}
		else{
			switch_id.className = 'hidden';
			menu_status[theid] = 'hidden';
		}
	}
}