$(document).ready(function () {
    $(".productsCategoryChoice").change(function () {
        $.ajax({
            url: "/Admin/GetProductsListByCategory/?page=1&categoryId=" + $(".productsCategoryChoice option").filter(":selected").attr("value") + "&time=" + $.now(),
            type: "GET",
            dataType: "html",
            success: function (data) {
                $("#targetGrid").empty();
                $("#targetGrid").append(data);
            }
        });
    });

    $('#loading')
    .hide()  // hide it initially 
    .ajaxStart(function () {
        $(this).show();
    })
    .ajaxStop(function () {
        $(this).hide();
    })
;

});

jQuery.fn.center = function () {
    this.css("position", "absolute");
    this.css("left", (($(window).width() - this.outerWidth()) / 2) + $(window).scrollLeft() + "px");
    return this;
}