Auto Click for srinichal

This project post is intended for srinichal "We are looking for a script that will automatically click/call a URL once the source code changes on a websites server. A website is hosting a contest, where the first 75 people to click at a certain time win the prize. The website URL stays the same, but the source code changes right at the designated contest time, so you have to refresh the page and click the button to enter to win. We want a script that will constantly monitor the code, and instantly click/call the button URL as soon as the source code changes. "