Fotiman - 1:17 pm on Oct 11, 2012 (gmt 0)

I would suspect some sort of pre-fetching issue, where the browser (or possibly a browser add-on, or possibly some proxy server between the browser and your site) is parsing the document for URLs and attempting to load them under the covers. But check your document for calls to showClick to make sure they all have valid input. You could validate the input (pagenum) to make sure it's not undefined or null, and just return from the function if it is. If you do that and you still see these requests, then it's not a functional problem and is more likely not an actual user that's making the request.