What I'm looking to do is add a number of polygon hotspots to an image which when clicked selects the associated item in a dropdown form. I still want the dropdown field to be visible for those users that have images and js disabled. I also want to have a hover effect on the hotspot where a)when the users hovers the hotspot is replaced with the same image of the region but in another colour b)if the user selects the region from the dropdown then the hover state is activated even though they did not hover over it as an indication that that's the area which is currently selected.
Is this possible? And if so do you know of a complete tutorial on the web? All the examples I have read through seem to be lacking in some way.