These buttons try to modify the status bar in the four windows, using JavaScript 1.0 (Navigator 2)--only the first works correctly, because you can't refer "up" the family tree in JavaScript 1.0 (the second will display an error message):


These are the buttons in this page: <FORM> <INPUT TYPE="BUTTON" VALUE="The current window: self.defaultStatus" onclick="self.defaultStatus='This is the current window\'s status bar'"><P> <INPUT TYPE="BUTTON" VALUE="The parent window: Win1.defaultStatus" onclick="Win1.defaultStatus='The previous (parent) window\'s status bar'"><P> <INPUT TYPE="BUTTON" VALUE="The parent window: parent.defaultStatus" onclick="parent.defaultStatus='The previous (parent) window\'s status bar'"><P> <INPUT TYPE="BUTTON" VALUE="The top window: top.defaultStatus" onclick="top.defaultStatus='The top (most-ancient ancestor) window\'s status bar'"><P> <INPUT TYPE="BUTTON" VALUE="Close this window" onclick="self.close()"> </FORM>