TextBox with currency format

Hi, I whant to know, how I can make the currency format to textbox, like of Cobol

77  Invoice-Amount      Pic $$,$$9.99.

I tryed other why, but is so strange and not so functional..., it's possible Automated teller machine ???

for example: the user will be type this number 5124.25

the user types 5: 0,05

the user types 1: 0,51

the user types 2: 5,12

the user types 4: 51,24

the user types 2: 512,42

the user types 5: 5124,25