hxr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
<a class="link_class" data-img="1"........
$('.links_class').click(function(){
var id =$(this).attr('data-img');
$('#zurnalItemImg_'+id).stop(...........
https://www.instagram.com/_имя_пользователя_/?__a=1