Passing Credentials

Hi. I asked a similar question last, week, but I don't think I asked it correctly. What I am trying to do is to web into a web server that I control (no problem here). However, from there, I want to be able to click a button on the web page and have multiple web cameras be displayed on my server's page (which I can do with frames, or some other method). The issue I'm having is that I can't seem to pass the authentication credentials (username and password) along to the web cameras, so each time I access them I have to supply the credentials. I would prefer to have to log into my server and from there have these credentials passed along to the web cameras. Any ideas on how to do this? Thanks!