Newbie looking for Javascript examples

I need to write a simple webpage using javascript that can be used by our support group to assign all our users to "Meeting Hosts". In the hopes that I won't have to figure out everything from scratch, I wanted to see if anyone had any examples that might be of use. I have already created a html page using javascript that displays all our meeting rooms and their access setting, so I have some limited experience using the webservices and javascript.

What I am looking for is code that demonstrates how to do any of the following:

- log a "hard coded" user into Connect
- retrieve the breezecookie information that is needed for other webservice calls
- loop over all user accounts
- set a user to "Meeting Host"

Any code samples will be appreciated.