Infinite-Ajax-Scroll On Clistview

Hi, I am using clistview. when i click a page number, it works well in an ajax way (i can see the request like: /index.php/post/Post_page=2&ajax=postlist). but,

now i am using infinite-ajax-scroll on clistview. the infinite scroll works as well, but the problem is that when i check the request parameters, i find the request is no ajax any more ( like only: /index.php/post/Post_page=2)

please how can i make it in an ajax way?