Althought it doesn't look it, this needs a Tag Extra Info (TEI) stuff
included. A tag can't use request time variables unless TEI is used.
Here is the tutorial for this:
http://www.orionserver.com/taglibtut/lesson5/
To get around this, just use the actual value for
It looks like laboratory:laboratory actionPerformed has been defined such that it does
not allow %= % as an attribute value.
Check the tld for the taglib if rtexprvaluetrue/rtexprvalue for this tag then what
you did should work, if rtexprvaluefalse/rtexprvalue then it'll only take a
straight
