Module development and code questions

I have a module that exposes a form with a submit button. How can I prevent the user from submitting multiple times?

Thanks!
Joe Cotellese
FWScan

I have added a new menu and everything works wonderfully with this exception:

the new menu does not use the

I'm trying to make menus -associated with taxonomy- in blocks, which should display all contents related to the taxonomy, but only one content can be displayed. Is there any trick to force Drupal to show all related content at once? (URL alias is turned on, but not yet in use. Could it be a solution?)
For example: if there's taxonomy sg. like News-->Sports-->Football, what URL should I give the navigation module to show all stories related on football?
please help asap

thnx

Currently I am working on my single website(single domain+single databse). Now I want to share single database to multiple domain.System is linuxbase and mySQL database.I dont have any idea about that.Plese anyone can help me???????

regard,
Bhavna

1) I configured the profile module in admn\conf\module\profile. I selected all options on the profile module page. I have also selected the option "Avatar or Picture" and saved the configuration and logged out as an administrator.
However, when I clicked on a new User link. It is showing only UserName & EmailID & not all the fields i had enabled and saved as an administrator before.

I am trying to add administrator view and edit tabs to the CVS version of the project module.

I've been through the new menu docs and have looked at other modules that implement LOCAL tabs, but I can't get them to appear.

I bet it's real easy, too.