I used the following js to pop-up a new window from original window:
oWin = window.open("PServlet?module=LoginHandler","_blank",
"directories=no,location=no,menubar=no,resizable=yes,status=yes,titlebar=yes,toolbar=no",
false);
As you can see, I did not set the size or location of new window, But my test results is that the size of pop-up windows on every time was shown irregularly from the same size of original window, sometimes it is half, sometime it is full screen or partial size.
Everybody know what is reason? If I wouldn't change the JS, how can I let the pop-up window to be displayed in full screen in every times.