JavaScript Made Easy: Free JavaScripts Tutorials Example Code

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JavaScript Basics

Inserting Javascript

Complete Tutorial

Advance DHTML Tutorial



Page Extension

Displays a message based on the extension (like .html) of the web page. And, it is a breeze to add more file types to the script.


Insert into <HEAD>
<SCRIPT LANGUAGE="JavaScript"> <!-- This script and many more are available free online at --> <!-- The JavaScript Source!! http://javascript.internet.com --> <!-- Begin URL = window.location.href; ishtm = (URL.indexOf('.htm') > -1); // true if URL contains .htm ishtml = (URL.indexOf('.html') > -1); isshtml = (URL.indexOf('.shtml') > -1); isphtml = (URL.indexOf('.phtml') > -1); // End --> </script>

Insert into <BODY>
<center> <SCRIPT LANGUAGE="JavaScript"> if (isphtml) { document.write("This is a .phtml file!"); } else if (isshtml) { document.write("This is a .shtml file!"); } else if (ishtml) { document.write("This is a .html file!"); } else if (ishtm) { document.write("This is a .htm file!"); // Include the generic .htm last because if tested // first, it would be true for all the file types above } else { // It is something else.... document.write("This file is of an unknown type."); } </script> </center>

Other Options