Owing to the fixed nature of hotspot coordinates, they do not resize with the image map. As such, scalable image maps must be avoided in responsive or % based layouts.
For a lot of semantic reasons, it's better to use CSS styled lists for menus.
Hi, I am actually posting my version of the question, rather than any answer...
I understand by Nancy's comments that there is an alternative and better way to manage "traditional" menus.
What if, instead, my menu is displayed "in circle" around an area, and I want to display different information (mainly text) inside the circle, and sometimes aside it, depending on what menu element I hover on?
I did it in flash (see http://www.csegno.com.ar/fla/cSegno%20flash%20page.html) and I am basically trying to replicate it in a fluid layout fashion (js, css, etc..) , to make it available to tablets/smartphones as well.
Thanks a lot!