SharePoint 2010 introduces modal dialogs
SharePoint 2007 UI was something out of 1998 (sorry Violet Blue for stealing that joke). The kinds of issues that clients raised with me in 1999: screen blinks, page changes, confusing history, were all their in SharePoint 2007 in spades. SharePoint 2007 with essentially an IE 6 tool, and lacked the "Web 2.0" UI and UX technology that we have all grown to love in Flickr, Facebook, YouTube, LinkedIn, Twitter, Foursquare, Yelp.....
var value = SP.UI.Screate_DialogOptionsDialog();
value.url = "" Place in valid URLvalue.width = define width and heightSP.UI.ModalDialog.ShowModalDialog(value)