Originally posted by panayiotis panayiotou: I try this but it doesn't work.
On an internet forum, "it doesn't work" is, for the most part, a useless statement. It would be better if you told us what did happen when you tried to run it.
Did the page blow up? If so what error messages were dumped to the screen. If none, did you look in the server's logs to see what might have gone wrong? If so, can you post the stack trace so we can see it? Did the expression return "null" or an empty string?
Without this type of information, folks here can't do much to help you.