This is jQuery plugin to highlight map areas. Inspired by:
mapper.js (http://www.netzgesta.de/mapper/)
Lightmapper (http://www.codeproject.com/KB/scripting/Lightmapper.aspx)
Plugin was tested on jQuery 1.6.1
$('image#with_map').mapper(options);
where $('image#with_map') is a jQuery object of image with related map
allowSelect: true/false - allows to select area by click
hoverRelated: true/false - adds class 'map-hover' to related objects on hover
selectRelated: true/false - adds class 'map-select' to related objects on select