It's easy to implement, I've got implemented in my gis: http://wms.diphuelva.es/mapguide/phpviewersample/index.php -- View this message in context: http://www.nabble.com/Mouse-Wheel-Zoom-in-Ajax--tf3196003s16610.html#a8881404 Sent from the MapGuide Users mailing list archive at Nabble.com.