In my project i have many pages with frames. This project should work properly under different environments, that is why it was neccessary to cut Path in Pages and BaseUrl in frames. So i have a problem. There are two pages with the following Pathes: hosting.testsites.hostopia.com/OS4/index.php hosting.testsitesc45.hostopia.com/OS4/index.php If i cut them (~/OS4/index.php) one of this pages disappears even if they have different frames. Why? And what is the logic of frames/pages merger?