How Do I Pass The Command Argument Of Linkbutton To My Pagescroll Function..

$(window).scroll(function () {
           if ($(window).scrollTop() == $(document).height() - $(window).height()) {
               GetRecords();
           }
       });
       function GetRecords() {
           pageIndex++;
           alert('PageIndex : ' + pageIndex + ' , Page Count : ' + pageCount);
           if (pageIndex == 2 || pageIndex <= pageCount) {


               $("#loader").show();
               $.ajax({
                   type: "POST",
                   url: "Default.aspx/GetCustomers",
                   data: '{pageIndex:'+pageIndex+'}',
                   contentType: "application/json; charset=utf-8",
                   dataType: "json",
                   success: OnSuccess,
                   failure: function (response) {
                       alert('Hell 1');
                   },
                   error: function (response) {
                       alert('Hell 2');
                   }
               });
           }
       }
       function OnSuccess(response) {
           var xmlDoc = $.parseXML(response.d);
           var xml = $(xmlDoc);
           pageCount = parseInt(xml.find("PageCount").eq(0).find("PageCount").text());
           var customers = xml.find("Customers");
           var repeatColumns = parseInt("<%=dlCustomers.RepeatColumns == 0 ? 1 : dlCustomers.RepeatColumns %>");
           var rowCount = Math.ceil(customers.length / repeatColumns);
           var i = 0;
           while (i < repeatColumns * rowCount) {
               var row = $("[id*=dlCustomers] tr").eq(0).clone(true);
               for (var j = 0; j < repeatColumns; j++) {
                   var customer = $(customers[i]);
                   if (customer.length == 0) {
                       //alert('Bingo');
                       $("table:last", row).remove();
                   } else {
                       $(".name", row).eq(j).html(customer.find("Name").text());
                       $(".productId", row).eq(j).html(customer.find("ProductId").text());
                       $(".description", row).eq(j).html(customer.find("Description").text());
                       $(".imageUrl", row).eq(j).html(customer.find("ImageUrl").text());
                       $(".image", row).eq(j).attr("src", 'Images/' + customer.find("ImageUrl").text());
                       $(".price", row).eq(j).html(customer.find("Price").text());
                       $(".quantity", row).eq(j).html(customer.find("Quantity").text());
                   }
                   i++;
               }
               $("[id*=dlCustomers]").append(row);
           }
           //$("[id*=dlCustomers] tr").eq(0).remove();
           $("[id*=dlCustomers]").show();
           $("#loader").hide();
       }