hey, thought it would be nice if i could put some code into my site that makes the url stay the same regardless on what parts of the site they go on, would be much appreciated.
Well, putting a frame around your content should do the trick. It would also prevent people from deeplinking to your site: linking to pages deeper in your site. So while it may seem cool, I would advise against it (in fact, if I were a competitor I would be thrilled to see you accomplish what you ask for here).
why exactly would you want to do this? like kh7 said, this is only going to hurt you. your search engine rankings will suffer and people wont be able to digg/link/stumble/bookmark/blog any of your pages.