I'm using Dreamweaver to make a website.

Basicly at the header of each page is a picture of a car. I have been trying to work out how to make it randomly choose a different picture from a libary I have of them on line. So hopefully everytime the page is refreshed, it randomly picks out a new picture to put at the top of the page. But I'm not having much luck as I am shite at Java script.

Anyone know how to do it?

If ya can help that would be soooper