Any solutions?

Hi guyz,

My company want me to do a research on how to includes a “dynamic” header into a website. The header is just like a anouncement column or somethings similar to a “banner”. This banner can be a picture, flash animation or html file. As long as this header is able to show and hide when there are something we wanted to announce.

PS: The website that we wanted to apply this “thing” is a .html site and therefore, please not recommend any “server-side includes” method.

Thanks for your help! Really!