Why it's only happening at first execution

Why it's only happening at first execution

Hi,

I have loading image for my add to basket button and for my order now button as well.

When the users clicks on Add to basket button the loading image of the button will show properly but the loading image of the order now button will only show at the first time so if you refresh the page then click add to baster the loading image for the basket order now will show but click again add to basket and it won't show!

here is my url:



Thanks,
Jassim Rahma