Displaying a modal panel will make browser scrollbar appears
I have a small test page. All the content fit into the browser
windows, then no scrollbar is showed by the browser. I use
FF2. When I click a button, I create a new Panel with dinamic
content. then I render it on documento.body and make show.
Surprisly then the browser will show scrollbars. If then I
close the panel the scrollbars will disappears.
Why the panel will make the scrollbars appears? Some hint?
Is a css problem?
Thanks in advance!