HELPFUL NOTES FOR VBScript:

&: Ampersand is concatenation operator for strings
Option Explicit:--Adding This line gives us some ideas as to what went wrong

Regular Expressions in VBScript
-------------------------------

I need to create A RegExpObject with

Dim oRegExp
Set oRegExp=New RegExp

then I can determine a pattern to search for by setting the RegExp.Pattern Property

oRegExp.Pattern="RA"

With that done, I perform the regular expression search using

Set RA_match=oRegExp.Execute(Position_text)

This returns the Matches Collection Object.  Basically that includes
a count of the number of times the match occured and the values 
of the matches.  I can access the matches using

RA_text=RA_match.Item(0) 'Access the first one (index 0)