Ajax v jquery

$(function() {
		$(".column").sortable({
			connectWith: '.column',
				update: function(e, ui){
				serial = $("#levy").sortable("serialize");
        	
				$.ajax({
					url: "poradi.php?index=levy",
					type: "POST",
					data: serial,
					// complete: function(){},
					success: function(feedback){
						$('#data').html(feedback);
					}
					// error: function(){}
				});

        serial2 = $("#pravy").sortable("serialize");
				$.ajax({
					url: "poradi.php?index=pravy",
					type: "POST",
					data: serial2,
					// complete: function(){},
					success: function(feedback){
						$('#data').html(feedback);
					}
					// error: function(){}
				});
			}
		});

		$(".portlet").addClass("ui-widget ui-widget-content ui-helper-clearfix ui-corner-all")
			.find(".portlet-header")
				.addClass("ui-widget-header ui-corner-all")
				.prepend('<span class="ui-icon ui-icon-plusthick"></span>')
				.end()
			.find(".portlet-content");

		$(".portlet-header .ui-icon").click(function() {
			$(this).toggleClass("ui-icon-minusthick");
			$(this).parents(".portlet:first").find(".portlet-content").toggle();
		});

		$(".column").disableSelection();
	});