Change whole image on rollover of imagemapped links

i will try to explain this the best i can. i would like for each of these three polaroids to have their own link, which i can do using an image map. My question is whether i can get the whole image to change upon each rollover so that the picture the mouse is hovering over becomes the foremost picture.

In other words, if i were to hover my mouse over the second photo, i would like that photo to then be on the top of the pile. i have created 3 versions of this image, all having a different order so that i can use it as a rollover image.

If this cannot be done using an image map, can someone suggest an alternate method?

Thanks.

image: http://ift.tt/1OlZIf2

Alternatively, can i darken the polygons upon hover in a way to hint that each one is a link?