$("#message,#name").live("keydown", function (e) {
          if (e.keyCode === 13 && e.ctrlKey) {
            $(".submit").trigger('click');
            e.preventDefault();
          }
    });
    $('.submit').live('click',function() {

        var name = $('#name').val();
        if (!name || name == 'Name') {
            alert('Please enter your name');
            return false;
        }

        var form_data = {
            app_id:<?php echo $this->uri->segment(3)?>,
            name: $('#name').val(),
            email: $('#email').val(),
            message: $('#message').val(),
            ajax: '1'
        };

        $.ajax({
            url: "<?php echo site_url('comment/comments_insert'); ?>",
            type: 'POST',
            data: form_data,
            success: function(msg) {
                fx.boxout(event);
                 alert("dd");
                $("<div>发送成功</div>").addClass("notify").appendTo("body").fadeOut(8000);
                $("<li><span class='author'>" + form_data["name"].replace("<","") + "</span>" + form_data["message"].replace("<","")  + "</li>")
                .prependTo(".comment_list ul").effect("highlight",{},5000);
            },
             beforeSend: function(data){
                 $(".modal-window").html('<p>Loading...</p>');

            }
        });

        return false;
    });