Ever wanted to show an announcement to your users but don’t want to bother them continuously? Then jAnnounce is the solution for you. The easy to use jquery plugin enables you to show notifications and give users the possibility to close them and never see them again.
It works in every current browser by using html5 localstorage and a cookie fall back. So also no need for any database.
A big manual is also to your disposal and my support which users before you highly appreciate.
orginal product link