[jQuery] jquery UI Dialog containment

[jQuery] jquery UI Dialog containment


I have created a few Dialogs and want them contained within a div.
I was surprised to see that the containment options is not available
for the UI Dialog. Is there any technical reason for this. I have
used
$.extend($.ui.resizable.defaults, {
containment: '#myContainingDiv'
}
but I also want the end user to not be able to resize the dialog's
outside this containing div. When I extend the resizable defaults it
works but does not allow resizing right to the edge of the containing
div.
Thanks for any help anyone can be.