Can I put transparent Color Over Image

Hi all,

Facing a new problem, I have an Image(.gif/.jpg) on my Html page, I want to create HotSpots On Some Parts Of That Image. I am able to create links at desired positions but i want “On Mouse Over to that link The ForeGround Color shud comeand the portion of the image behind it shud also be visible” / “or a kind of Transparent Color shud come”.

If Somebody could help me out in this, it will be a great help.

Thanx