jQuery用户界面对话框和Ajax Post,json

是否可以将Ajax Post与jQuery UI对话框相结合? 我想处理json到html中的ajax响应,以便在对话框中显示。

var url = AJAX_URL+requestId+'/'+userId;
// Need to POST the requestId and userId instead of GET

$("body").append("<div id='dialog-modal'>Loading...</div>");
$("#dialog-modal").dialog("destroy");
$("#dialog-modal").load(url).dialog({
    modal:   true,
    title:   "Update Status",
    buttons: {
        Cancel: function() {
            $(this).dialog('close');
        },
        Update: function() {
            // Do something
        }
    }
});