Frontend article submission -- duplicates if two clicks

I've noticed that if I click on the save button twice when submitting an article on the frontend, I end up with duplicate submissions.

I've also noticed that if I repeatedly click Save button, I get msg :

403 - The item doesn't have any primary category

Is there a way to get the Save button to disable after it has been clicked to prevent multiple submissions?

hello
it's a javascript problem with IE7 but no issu at this time sorry
use other browser
regards

Sorry to say this... but you can find this issue with all IE: 6,7,8,9.

Its a a well known flexi bug!

Can we say to all IE visitors: Use other browser? !!!

hello some times is a conflict beeteen module javascript and flexicontent .. try to desactived some body to find it !
what is your template ?
regards

Today, I got the same error when I submitted an article from the front end of my site as an unregistered user.

I clicked the Save button only once.

The category I added the article to didn't have any articles yet.

The article was created and only once instance was recorded.

I then tried to submit another article to the same cateogory, and got the message:

404 - CATEGORY #0 NOT FOUND

Any ideas what's wrong?

create your topic with more information
joomla version
php version
desactived plugin for mootools upgrade
try with ja purity template
desactived module with javascript
regards