<!-- This example is from the book _JavaScript: The Definitive Guide_. --> <!-- Written by David Flanagan. Copyright (c) 1996 O'Reilly & Associates. --> <!-- This example is provided WITHOUT WARRANTY either expressed or implied.--> <!-- You may study, use, modify, and distribute it for any purpose. --> <!-- Set a variable to determine what version of JavaScript we support --> <!-- This technique can be extended to any number of language versions --> <SCRIPT LANGUAGE="JavaScript"> <!-- _version =index.html 10; // --> </SCRIPT> <SCRIPT LANGUAGE="JavaScript1.1"> <!-- _version =index.html 11; // --> </SCRIPT> <SCRIPT LANGUAGE="JavaScript1.2"> <!-- _version =index.html 12; // --> </SCRIPT> <!-- If the version is not high enough, display a message --> <!-- This version of the message appears for JavaScript 1.0 browsers --> <SCRIPT LANGUAGE="JavaScript"> <!-- if (_version < 11) { document.write('<HR><H1>This Page Requires JavaScript 1.1</H1>'); document.write('Your JavaScript 1.0 browser cannot run this page.<HR>'); } // --> </SCRIPT> <SCRIPT LANGUAGE="JavaScript1.1"> <!-- This version of the message will appear on non-JavaScript browsers --> <!-- --> <HR><H1>This Page Requires JavaScript 1.1</H1> <!-- --> Your non-JavaScript browser cannot run this page.<HR> <!-- Start hiding the actual program code . . // The actual JavaScript 1.1 code goes here. . // Done hiding --> </SCRIPT>
file: /Techref/language/JAVA/script/definitive/examples/18.5.txt, 1KB, , updated: 1997/4/4 10:59, local time: 2024/12/4 18:43,
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