//The below code DOES NOT work.

function LoadTabContents(applicationID)
{
        $("#currentTab").load('@Url.Action("TabMethod", "MyController", new { @id = applicationID })')
}

//The below code works fine.

function LoadTabContents(applicationID)
{
        $("#currentTab").load('@Url.Action("TabMethod", "MyController", new { @id = 123})')
}

function LoadTabContents(applicationID) {
    $("#currentTab").load('@Url.Action("TabMethod", "MyController")' + '/'+ applicationID);
}

public ActionResult Index()
        {
            if (Request.IsAjaxRequest())

                return PartialView("partialView");
            else
                return View();
        }

$("#currentTab").load('@Url.Action("TabMethod", "MyController", new { @id = "[APPLICATION_ID]"}).replace("[APPLICATION_ID]",applicationID)')