I correct: balance isn't good!
in fact, balance is ok on the first load of fancybox.
but the page loaded in fancybox use of jquery tabs plugin.
Depending on the tab displayed, content is more or less. So the
fancybox takes good size (but exceeds the size of the window when it
should take a maximum size for a global display with scroll). But
ultimately, isn't re-centered.
in "jquery.fancybox-1.3.2.js" where is the function for resizing
fancybox (type inline) ?
I think it's in this function must be added the re-centering of the
fancybox and the maximum height with a scroll automatically.