[TYPO3-ttnews] Hide plugin if there is no news

[Gregory Loichot]

Hello,

I have a tt_news plugin on some pages. If there is no news the plugin 
displays : no news in this list + the header (if defined).

In my case, the header is defined. I can hide the "no news in this 
list", but the header is always displayed if there is no news.

Is it possible to hide all the plugin ? Or the header ?
Thank you !