how can i add if else statement to this

[craiglongmuir]

hey all
i am making a birthday reminder and have a db with tbl_birthday with columns birthdayID, name, day(1-31), month(1-12)
i have this code so far

select name, colDay, colMonth
from tbl_birthday
where (colMonth > MONTH(CURDATE())) or (colMonth = MONTH(CURDATE()) AND colDay > DAYOFMONTH(CURDATE()))
ORDER BY colMonth, colDay
LIMIT 1

now this only works getting the next bd upto dec 31 so i need to loop back round to jan if no bds found.

so basically i want to say iff no results come from the select statement above, just display the bd results and order by colDay, colMonth

how do i do this

thanks

craig