Hi Prashant, one approach to make the markers disappear when uncheck the checkbox is to make them unvisible with 'setVisible(false)'. To get all the markers of a category you need to put them in an array and go through all markers to make them invisible:
for (var i=0; i<gmarkers.length; i++) { if (gmarkers[i].mycategory == category) { gmarkers[i].setVisible(false); } } Have a look to the whole example here: http://www.ralf-wessels.de/test/apiv3/marker_categories.html Ralf -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-maps-js-api-v3+unsubscr...@googlegroups.com. To post to this group, send email to google-maps-js-api-v3@googlegroups.com. Visit this group at http://groups.google.com/group/google-maps-js-api-v3. For more options, visit https://groups.google.com/d/optout.