Very beginner at MAXScript, can't get matchPattern to work

EDIT: by trial and errors (so many errors....) i made it work! thanks anyway

Hi all,

I'm doing a few exercise in maxscript to get the handle of it and i'm trying to modify objects depending on their name. I write my pattern in a Edittext box and i want it to compare with objects in my scene. I managed to have my objects change if i wrote my pattern directly in my script but i can't get it to work with the text i write in my Edittext.

Here is my function to matchpattern and replace the objects

on RecastFromPattern pressed do
(
select geometry
--select all the objects on the scene

for i = 1 to selection.count do
--will do this function as many times as there are objects
(
if (matchPattern selection[i] pattern:"Pattern") then
--will verify the name of each objects and compare it with what was written in the Edittextt box and saved in the variable "Pattern"
(
instanceReplace selection[i] ThePickMaster
--if there is a match it will replace the object of that number of the count with the object previously selected by the pickbutton and saved in the variable ThePickMaster
)
)
)

Can anyone tell me what i'm doing wrong with matchpattern???