Pagination bug

I have noticed a slight bug with pagination on my site and was wondering if it’s universal or just an issue with my site. If the user clicks multiple times on the page number they want to go to, then the pagination navigation bar will appear multiple times one on top of the other. For example if you click ‘2’ to go page 2, but you click it twice or three times, then there will be two or three pagination bars (one on top of the other) once the results load. Also after each click an additional ajax loader .gif will show (although that’s only noticeable on a slow connection).