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If you are planning to script HTML on the Internet and would like the "broad reach" of supporting both Netscape and Microsoft browsers, then your choice of languages is limited to JScript. Netscape does not support VBScript, so if you want to ensure that your page is viewable with modern browsers, you need to use JScript. Using JScript, however, does not guarantee that your script will work on all browsers, since there are many differences in HTML object-model conformance among the leading browsers. If you stick to features in HTML 3.2 (see the World Wide Web Consortium, or W3C, specification and ECMAScript (see the ECMA Standard, you should be okay.