window.open won't work in phonegap 1.7.0
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 I'm working with PhoneGap on an mobile device. And its' issues and bugS are too much to solve.

One of the tens of thousands issue is why as I write in a function:

    window.open('new_window.html','well','width=300,height=200');

>(I have already created a new_window.html under assets/www/.)

But as I call it, it appears a full screen window, and of course. If I set scroll bar option is true, it's still no use. The system is like a dummy. 

I have searched the solution for several days, trying use iframe/ frame to replace with it. But they are not appropriate or no use. 
In my develop environment, I just want to let as the user press a button and a small window
pops out~ And I can set the tile, location, size... 
Any alternatives or suggestions?
                                                                   Thanks for millions.