Use bgiframe for dialogs when available

[dmitrig01]

We have reports in email that select boxes show through... should be as easy as adding <code> if ($.fn.bgiframe != undefined) {

$(dialog).bgiframe();

} </code> This would of course live in dialogInit

[scott.gonzal]

Fixed in [4744]. There is now an option for using bgiframe (defaulted to false for performance reasons). You'll probably want to change the defaults rather than having to set this option for every dialog:

$.ui.dialog.defaults.bgiframe = true;