Little help with player casting detection

[ChaosSlayerZ]

I like to write a player.pl script which would see if player has casted a specific spell.
If player did, the script will check what gender player is, and if male put one illusion on the player, if female put a diffirent illusion on the player.

Any sugestions? =)

PS I have looked at Trev's Illusions script

http://www.eqemulator.net/forums/showthread.php?t=25556

but the script operates of NPC who detects proximity.
I need kind of a trigger which would fire based on players themselves.