Messages with Webmacro

Hy,
I'm using Webmacro to develop a small Webapp. No I ran into problems because
I need a function to call, if I want to post a Message. 
For example, take a guestbook-webapp: When you submit the entry-form the app
checks whether all entered data is ok, when it is ok, then a page with the
data is displayed (via a template). But, when the data is not wellformed
then there should be a message telling the user to go back and refill the
page. As a solution I found out that I could throw a HandlerException, but I
want the message to be shown in my own layout. The Handler-Exception also
produces another Problem:
On every Page-Request the app gets a database-connection from a
connection-pool and puts it back on the very and of each handler-call. But,
when I throw a Handler-Exception the end of the handler-call is never
reached so the connection isn't put back into the pool.

Is there a solution?

Thanks
Dominik



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