Dynamic Links..

Hi, I want ease the authentication process of the users on my network.. Now, here is the problem.. I have a php script that re-directs to another company's page.. In that page, there is a link to go forward, but that link has a session id in it, that is dynamically generated when the page is called.. What I need is the contents of that link, is there any way to grab it? What I need is the contents of that dynamic link since it has a session id.. So, for example.. test.php -> othercompany.html -> dynamic link from other company.html Thanks..