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webznz

macrumors member
Original poster
Mar 8, 2011
82
0
Hobbitin
Hey, I'm not sure how to refer to this.. I think its a string format but thought I would come here to get some help.

I am wanting to get my user to enter a 20 character string, they will be numbers and I want to after every fifth number to insert a hyphen.. as the person is typing... how can this be done?

thanks.
 
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