Thanks,

Everything works now like a charm.

Roelof



Op 20-3-2012 1:20, Stephen Bloch schreef:
On Mar 19, 2012, at 3:10 PM, Roelof Wobben wrote:

But the contents of color does not change so I get a error message.
What is the racket way to change the value of a string.
That's not the problem.  It's your error message, so you should be able to 
figure out why it's happening.  It has nothing to do with subtleties of the 
world teachpack; it's a simple bug in your code, related to your switching 
between English and Dutch words.


Stephen Bloch
sbl...@adelphi.edu



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