fdf_set_javascript_action Sets an javascript action of a field &reftitle.description; boolfdf_set_javascript_action resourcefdf_document stringfieldname inttrigger stringscript Sets a javascript action for the given field. &reftitle.parameters; fdf_document The FDF document handle, returned by fdf_create, fdf_open or fdf_open_string. fieldname Name of the FDF field, as a string. trigger script &reftitle.returnvalues; &return.success; &reftitle.seealso; fdf_set_submit_form_action