//var hide_empty_list=true; //uncomment this line to hide empty selection lists
var disable_empty_list=true; //uncomment this line to disable empty selection lists
addListGroup("location_id", "location_ids");
addOption("location_ids", "Select a studio", "", "", 1); //Empty starter option

addList("location_ids", "Langham Place", 10, "weeks_10");
addList("location_ids", "SoHo", 2, "weeks_2");
addList("location_ids", "Two ifc", 1, "weeks_1");
addList("weeks_10", "8 March 2010", "2010-03-08");
addList("weeks_10", "15 March 2010", "2010-03-15");
addList("weeks_2", "8 March 2010", "2010-03-08");
addList("weeks_2", "15 March 2010", "2010-03-15");
addList("weeks_1", "8 March 2010", "2010-03-08");
addList("weeks_1", "15 March 2010", "2010-03-15");