I own a website which contain a forum of my website. The problem I'm facing is that people'll taking the direct links of myforum and insert hyperlink in to their site. I am getting a huge amount of bandwidth and that's ok, but the number of pages visited is low in my main site. Is there a way or a script that I can add to the links, so that when someone presses on the link from their website, a page from my website opens instead or they cannot link to myforum, so I can get more visits. I using php, Please write to help me a script or code ...and show me where can I insert it?

Thanks!