textdraw text aligment

Hey

I tried to make a dynamic menu like gvc's, but i stuck at the text aligment part of the system.
How is that possible, when there's a ' , ' in the string, the string after the comma will jump to the right side of the textdraw.

You can see the list there


This is the menu


And this is my version of the dynamic menu


So.. what is the easiest way to make this?