[ic] creating a temporary page variable

[interchange-users@icdevgroup.org (Kevin Walsh)]

> > >  [tmp some_scratch] something [/tmp]
> > >
> > > it goes away after the current page.
> > 
> >     I think the tag reference is wrong.  It says for tmp:
> > 
> > "Sets a scratch variable to value, but at the end of the user session the
> > Scratch key is deleted"
> >
> That is actually correct. I don't know where your confusion lies...
> 
Well, the temporary scratch is removed at the end of the page session,
rather than at the end of the user session (expiry etc.).

The wording is a little confusing, so I've gone ahead and changed it
in the latest docs (in CVS).

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