Technically, those are not pop-ups but pop-overs - at least, this was language used when they first appeared. The gray-out is because of lost functionality. Here are the differences:
Pop-ups set off browser pop-up warnings. They do not stop functionality on the preceding window - they are simply another window. These are deprecated in most situations, but on rare occasions can be useful. Pop-overs typically do not set off browser pop-up warnings. The window beneath is grayed out because it is no longer functional. These are typically used to force a behavior, such as agreeing to TOS, or to carry someone through a process without leaving the original page (though sometimes you do get dropped on another page). Hope this helps! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Posted from the new ixda.org http://www.ixda.org/discuss?post=44487 ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [email protected] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help
