jquery $.ajax

    $("#tj").livequery("click",function(){
        var lss = $("#Init_3").sortable('serialize');
        //alert(lss);

        $.ajax({
            type:'POST',
            url:'indexP.php',
            data:lss+"&sort_tj=sort_tj",
            beforeSend: function(XMLHttpRequest){
                $("#loading").html('');
            },
            success:function(msg){
                $("#loading").html("");
                alert(msg);
            }
        });
    });