Navigator 2.0, Internet Explorer 3.0
This method displays any output to document that has been written but not yet displayed, and closes the output stream to document. When generating complete HTML pages with Document.write(), you should invoke Document.close() when you reach the end of the page.
After document.close() has been called, if any further output is written to document (e.g., with document.write()) then the document will be implicitly cleared and reopened, erasing all the output that was written prior to calling the close() method.