function dropdown_menu() {
	$("#nav a, .subnav a");
	$("#nav ul").css({display: "none"}); // fix for opera browser
	$("#nav li").each(function()
	{	
		
		var $sublist = $(this).find('ul:first');
		var $sublistCurrent = $(this).find('.current');
		
		
		
			$(this).click(function() {	
				/*$sublist.stop().css({overflow:"hidden", height:"auto", display:"none"}).slideDown(200, function() {
					$(this).css({overflow:"visible", height:"auto"});
				});*/
				$sublist.slideDown(200, function() {
					$(this).css({overflow:"visible", height:"auto"});
				});
			},
			function()
			{	
				$sublist.stop().slideUp(250, function(){	
					$(this).css({overflow:"hidden", display:"none"});
				});
				//$(".greca").css({opacity:"1.00"});
			});	
			
			$sublistCurrent.css({display: "block"});
		
	});
}


function greca() {
	var LevelMenu = $('#menu');
	$(LevelMenu).hover(function() {
		$(".greca").css({opacity:"0.40"});
	},
	function() {
		$(".greca").css({opacity:"1.00"});
	});
}