javascript — бесконечная прокрутка дубликатов ajax

Некоторое время, когда я обновляю страницу и прокручиваю вправо страницу загрузки, она дублирует элементы. Я использую этот код:

$(document).ready(function () {
$('[data-toggle="tooltip"]').tooltip();
//** My deals pagination starts**//
var my_track_load = 0; //total loaded record group(s)
var my_loading = false; //to prevents multipal ajax loads
var my_total_groups = <? php echo $my_total_groups; ?> ; //total record group(s)
$('#load_deals').load("ajax/autoload_process.php", {
'group_no': my_track_load,
'my_deals': 'my_deals'
}, function (data) {
++my_track_load;
}); //load first group

$(window).scroll(function () { //detect page scroll
// if($(window).scrollTop() + $(window).height() == $(document).height())  //user scrolled to bottom of the page?
//{
if (my_track_load <= my_total_groups && my_loading == false) //there's more data to load
{
my_loading = true; //prevent further ajax my_loading
$('.animation_image').show(); //show my_loading image
//load data from the server using a HTTP POST request
$.post('ajax/autoload_process.php', {
'group_no': my_track_load,
'my_deals': 'my_deals'
}, function (data) {
$("#load_deals").append(data); //append received data into the element
//hide my_loading image
$('.animation_image').hide(); //hide my_loading image once data is received
my_track_load++; //loaded group increment
my_loading = false;
}).fail(function (xhr, ajaxOptions, thrownError) { //any errors?

alert(thrownError); //alert with HTTP error
$('.animation_image').hide(); //hide my_loading image
my_loading = false;
});
}
// }
});
//** My deals pagination Ends**//

//** All deals pagination starts**//
var track_load = 0; //total loaded record group(s)
var loading = false; //to prevents multiple ajax loads
var total_groups = <? php echo $total_groups; ?> ; //total record group(s)
var country = '<?php echo $country; ?>';
var state = '<?php echo $state; ?>';
$('#results').load("ajax/autoload_process.php", {
'group_no': track_load,
'country': country,
'state': state,
'all_deals': 'all_deals'
}, function (data) {
++track_load;
}); //load first group

$(window).scroll(function () { //detect page scroll
// if($(window).scrollTop() + $(window).height() == $(document).height())  //user scrolled to bottom of the page?
//{
if (track_load <= total_groups && loading == false) //there's more data to load
{
loading = true; //prevent further ajax loading
$('.animation_image').show(); //show loading image
//load data from the server using a HTTP POST request
$.post('ajax/autoload_process.php', {
'group_no': track_load,
'country': country,
'state': state,
'all_deals': 'all_deals'
}, function (data) {
$("#results").append(data); //append received data into the element
//hide loading image
$('.animation_image').hide(); //hide loading image once data is received
track_load++; //loaded group increment
loading = false;
}).fail(function (xhr, ajaxOptions, thrownError) { //any errors?
alert(thrownError); //alert with HTTP error
$('.animation_image').hide(); //hide loading image
loading = false;
});
}
// }
});
});