How to make a subdomain reffer on a URL?

[TheGreenBoy]

Hello

i would like to know how can i reffer a subdomain on a URL.
exemple:

i have the URL:
http://www.website.com/level.php?1
and i want to make it
http://level1.website.com
i have the URL:
http://www.website.com/level.php?2
and i want to make it
http://level2.website.com

how can i make it from the direct admin panel?

i have admin level, reseller level and user level.


Thanks, Or.