function submenuswitch(smno) {
	smid = '#menuelement_' + smno + ' ul';
	if($(smid).css('display') == 'none') {
		$('.dropdown > li > h2 > a').css('background-image','url(/bitrix/templates/nord/components/bitrix/menu/simple_multilevel/images/plus.gif)');
		$('#menuelement_' + smno + ' h2 a').css('background-image','url(/bitrix/templates/nord/components/bitrix/menu/simple_multilevel/images/minus.gif)');
		$('.slsubmenu').slideUp('slow');
		$(smid).slideDown('slow');
	} else {
		$('#menuelement_' + smno + ' h2 a').css('background-image','url(/bitrix/templates/nord/components/bitrix/menu/simple_multilevel/images/plus.gif)');
		$(smid).slideUp('slow');
	}
}