onclick="window.open(this.href,'_blank',config='width=400,height=400,scrollbars=no,menubar=no,toolbars=no,directories=no,location=no,status=no');return false"

Place this script on an anchor tag, and it will open in a new browser with a defined size. The browser will not have a toolbar, menu, status, etc.

Sized Pop-Up Window

window

HTML