275335 quick fixes

I have a website with a commenting system. I need a programmer to do the following simple tasks: 1. Add javascript to check no url is specified in the comment box (users arnt allowed to post urls) 2. Also, in the php code, it must check to make sure no urls are in the comment as well, incase the user is making their own posts and avoiding the javascript, or have javascript disabled. This is an easy project, so should be cheap. If you do a good job, I will provide you with more work. Thanks