how to make a grayed out text entry?

[mcmahill mtl mit edu]

one more question.  Is there a way to make a text entry become grayed out
when its disabled?  Ie, when I make it not editable, it still looks like
it is.  I'm wanting something like the filename selection in the netscape
"print" dialog box where you still see a file name when you've checked the
print to printer radio box.

Suggestions?

Thanks
-Dan