JSON a callback parameter is acceptable to all json apis: ex. http://tako3.com/json/all?callback=tako4 no data: tako3([]) http://tako3.com/json/all returns all groups a group is addresses joined with a space example: tako3(["http://example.com/ http://aaa.example.com/ http://example.net/example/", "http://aaa/ http://bbb/ http://ccc/", "http://a/ http://b/ http://c/"]) http://tako3.com/json/http:/