Deprecated html elements and javascript functions

Hi all,

I'm working on the docs for the unescape function. This function is
deprecated and the only way to tag that is at the See Also section.

I think a deprecated function or html elements should say that it's
deprecated in a more noticeable way. Maybe a message on top saying
something like "This function/object/element is deprecated. We advice
against using it in new projects. Please use with caution.".

Paul.