Display/Hide Tabs

Hi,

I'd like to know if there is a possiblity to hide a tab when there is no content in in.

I created a "content type" with for example 4 tabs. But in some cases I'll don't need 4 tabs but for example three tabs. When I see the page I see of course four tabs with one empty tab. Is there a possibility to tell Drupal if there is no content don't display this tab ?

Many thanks for your work !!!

François