Web Sites and Ezine Design and Hosting

As a designer, you can control the size of the web site viewer's window. BUT because you can, doesn't mean you should. Many people won't like having their windows auto-resized. If you think it's worth the risk, control the window size with Javascript.
To open a new window, specifying the size and screen location, link to the window.open method as demonstrated by -> Open New Window
To reposition your new window, add a top=xxx and left=yyy to specify the top left corner position in pixels.
To reposition and resize an existing window, include a javascript that operates on "self" (the present window in javascript) as demonstrated by -> Fill the Screen with Page
To reposition and resize the window while the page is loading, place the javascript at the top of your <body> content.