Browser Window Open/Close 

(Closing the primary browser window vs a newly created window using 'target="_blank" or window.open().)

This web page is part of a group of pages that teach concepts of opening and closing web pages.  If you have found this page from a search engine, this page will not work properly unless it is launched from the instruction page is located at:  Browser Window .

• Click Here to close this window using JavaScript! -  If this URL is in a browser window that you created from your PC and not a new window created by a link using target="_blank" or JavaScript's window.open(), IE's browser will prompt the user with the following:
  "The web page you are viewing is trying to close this window.  Do you want to close this window?"