WML Headers

Hi, I'm working at adding a WML interface to my current HTML based web interface. A little background, when I want to redirect a page, such as when there is bad user input and such, I have a function: function redirect($to) { header("Location: $to"); } It works well, the page is redirect there. Looking over some online sites and WAP phone simulators it appears that the WML header is Content-location: $to. However, on some browsers such as WinWap3.1 Pro, it won't redirect to the supplied header, but rather just continue with that current file. Also using OpenWave's SDK it will redirect in the simulator but it will still read the rest of the file. Am I going about this whole redirect thing wrong, and/or does anyone have some good tips on WML redirections? Thanks, Al Baker