ASP Animated gif on page loading

Very quick job I need some code for asp pages when the asp page is loading like the rotating logo in paypal when you're waiting for example i have a page that transfers and order to paypal when i put an animated gif on - the second the page calles the next page the animated gif stops working - as is expected in asp i will re-use this script on a few pages - so need one i can drop into pages i dont mind if in javascript - needs to look awesome - easiest for me is an animated gif so can be changed please bid - need fast