PHP Multi Mobile Detection and Redirect Script

Hi, I require a script that will check the visitors device and then redirect them accordingly. For example, the script (in PHP or Javascript or anything else you suggest except ASP) would check if the user is on an iPad and direct to /[login to view URL] if User is on a Blackberry, redirect to /[login to view URL] If user is on a Windows Phone, redirect to /[login to view URL] If user is on a computer (PC or Mac) then redirect to /[login to view URL] If the script doesnt know what they are, redirect to [login to view URL] Very simple job. Code should be clean and easy to modify the redirection URLs.