Some time ago I wrote document describing common problem with cleaning up HTML. PHP manual states some little warning about topic but no solution on http://www.php.net/strip_tags Many websites are still vulnerable and similar problems happen not depending on programming language too often: http://www.jes.ee/~tonu/strip.php Please do not start flamewar, I know some people might find this information useful. Yes, it is not "advanced" and this is why people often do not notice the problem. Tõnu
