jQuery - AjaxSuccess

The ajaxSuccess() method specifies a function to run when an AJAX request completes successfully.

http://www.w3schools.com/jquery/ajax_ajaxsuccess.asp

Success Test

$(document).ready(function ()
{
    // only the ajax call can trigger this
    $(document).ajaxSuccess(function () { ShowSuccess(); });

    $("#btnSuccess").click(function ()
    { $("#ajax-content").load("../../assets/css/custom.css"); });

    function ShowSuccess()
    { $("#demo1").html("AJAX was successful");  }
});