using static wordpress login form on front page but links to another wp install?

Question

Ok heres the senarrio, i have 4 wordpress installs as follows

top level = mysite.com/ *main site; 1st level = mysite.com/site1 *1st site 2st level = mysite.com/site2 *2nd site 3st level = mysite.com/site3 *3rd site

The front page on the main site has login forms to each of the three sub sites. each site has different users, settings, content etc...

ie:

form 1 username & pass submit / form action="mysite.com/site1/wp-login.php"

form 2 username & pass submit / form action="mysite.com/site2/wp-login.php"

form 3 username & pass submit / form action="mysite.com/site3/wp-login.php"

when trying to login to any site, it will take the username/pass, submit the form but come back to the front page were it first loaded, and not directing the user to the control panel /siteX/

is this something that can be done? or would this require some other way of thinking. using links to the actual page instead of having the 3 login forms on the one page..?

thanks

Answer 1

Make sure the URLs for each installation is set to the correct value under Settings->General

Answer 2

You probably want Sidebar Login: http://blue-anvil.com/download/?did=28 If you use this, the user is not redirected to the backend.

I would also advice you to look at WPMU if you are having multiple sites.

Update
You would have to edit the plugin to include a dropdown list, where you could select which site to login to.