$(function() {
	
	var $inside_menue = $('ul.inside-menue');
	var $element = $('ul.left-menue > li');
		
		$element.click(function(){
				//alert('ok');
			if ($(this).children('ul').css('display')=='block'){
				$(this).children('ul').stop(true, true).slideUp(500);
			}
			else{
				$inside_menue.stop(true, true).slideUp(500);
				$(this).children('ul').stop(true, true).slideDown(500);
			}
		});
});