Attribute dropdown changes main image

[Bones]

I have a dropdown attribute list showing the colours available for that product. However, my client wants this menu to alter the main image. See this site for an example Click Here

I've had a look at the Product Attribute Pictures module, and it doesn't do exactly what's needed. Can anybody suggest how I can accomplish this?

Thanks

[jpf]

Like this Options as Images mod?

[ridexbuilder]

As jpf says, Options As Images is the one I've integrated in the past.
Also, not quite the same but a simpler solution:
Colour Variations : ejSolutions Development Site

[Bones]

Thanks for your replies, but my client specifically wants a drop down list, not radio buttons. Yes, I know what you're thinking, but the customer is always right

[jpf]

That is an easy HTML change...

[Bones]

... is it?

So how would I go about linking images in the backend to the dropdown menu options on the front-end?

Thanks