Hi all,\n\nFirst post to this group and I hope I can get some help. I have been\nstuck on this all day....\n\nI am using the Google Maps API to plot markers grouped into categories\nvia checkboxes. Some categories of markers are to load when the page\nloads, which are contained in a single XML file, other categories are\nto load after the user toggles the checkbox associated with a group of\nmarkers on.\n\nPlease see this link for clarification:\n\n[URL]http://fddc.987mb.com/index1.htm[/URL]\n\nSome categories are being read from "location.xml", which loads when\nthe page loads ([URL]http://fddc.987mb.com/location.xml[/URL]), specifically\nthese: APDs & DSIs, Independent Living, Airports, Stadiums, and Social\nSecurity. All other categories are to load "on demand" after the user\nspecifically toggles its checkbox on. For instance, "Targets" is to be\nread from "targets.xml", located here: [URL]http://fddc.987mb.com/targets.xml[/URL]\n\nI can't figure out how to do this to save my life. I am assuming that\nwhat I need\nis a JS function that sends the signal to load various XML files based\non which checkbox is clicked. If anybody could help me figure out how\nto do this it would be greatly appreciated. Thank\nyou!!!!!!!!!!!!!!!!!!!!!