$(document).ready(function(){

	var $navigation_active = false;

	$(".MainNavigation li").hover(

		function(){

			var $li_width = $(this).width()-2;
			$navigation_active = false;

			if($(this).children('a.level0').hasClass('active')){
				$navigation_active = true;
			}
			$(this).children('a.level0').addClass('active');
			$(this).children('ul.level1').css('width', $li_width+'px');
			$(this).children('ul.level1').show().css({'z-index':'200'});

		},

		function(){
			if(!$navigation_active) $(this).children('a.level0').removeClass('active');
			$(this).children('ul.level1').hide();
		}

	);

});