It seems that the level of implementation of standards by browser makers differs to a very uncomfortable level to the extent that what works on one or two browsers won't even work on another.
I was asked to implement a pop up window feature on some links that point to another website some months ago.
This leads to the next question - Is there any good reason to even use pop up windows considering the fact that implementation of standards by browser makers differ from one to the other?
Or, is there an implementation out there that I may have failed to realize or see?
Personally, I would not bother with pop up windows on my own projects for any reasons at all. Links that are bound to open in another window should simply do so with a notification to the user information the user that such links when clicked upon would open in another window.