I wish to make two more option fields, a check box (for enable/desamle something from plugin admin panel) and two radio boxes (to choose the distance in Miles/Kms) in my plugin "AB Google Map Travel".
Please someone check the code here: http://plugins.svn.wordpress.org/ab-google-map-travel/trunk/ab-google-map-travel.php and advice me how to make them using options.
I think I must create them using
add_option(). But how to check and save them in the admin panel?