You do not need to manually switch from video to browser when using the DMP. If you create a playlist that has an asset that points to an HTML page, and then to a video, both will be able to play without any manual configuration change.
Does this answer your question, or were you trying to achieve something else?
Im actually trying to figure out the hookstrings that are used in the flash file of the dmp's. The buttons at the top left that say Video and Browser. I would like to click on a URL and put the DMP in Video mode instead of logging into the GUI. I need to provide URL hookstrings to a Crestron box so that the box can send a mass HTML action to all of my DMP's. Is this possible?