declare
  success int;
  msg varchar(100);
begin
  SYS.CHANGEPASSWORD@abc(
    PUSERNAME => :P15_UNAME,
    PNEWPASSWORD => :P15_NEW,
    PRESULT => success,
    PMESSAGE => msg);
 if success = 0 then
     apex_application.g_print_success_message := msg;
 else
     apex_application.g_print_success_message := '<span style="color:red">'  || msg || '</span>';
 end if ;
end ;