onfunction=showtip(blahblah...
to
tootip=blahblah....
(wouldn't it be prudent to change the information on http://milonic.com/menusample6.php to match this new method????)
has the syntax for calling a tooltip in the html changed accordingly?

Also I have never ever ever got maxwidth in the tooltips setup to work; particularily long tooltips just display in one long line rather than wrapping.