function ChangeOrder() {
    var url = window.location.href;

    //update query string value
    url = ChangeQueryStringValue(url, "orderby", $("#ctl00_ContentPlaceHolder1_ProductGrid1_relevance").val());

    //reset page number in query string
    url = ChangeQueryStringValue(url, "page", "1");

    window.location.href = url;
}

function NarrowSearch(newUrl) {
    window.location.href = newUrl;
}

//function GoToProductDetails(productid) {
    //var var1 = '<%=System.Configuration.ConfigurationManager.AppSettings["ProductDetailRecordReference"].ToString();%>';
//    var var1 = "product";
//    window.location.href = "/" + var1 + "/" + productid;
//}