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Jul 23, 2002

Has anyone tried working out this one?

How to detect IE4 without wrongly detecting IE5.0 (IE5.0 usually returns a navigator.appVersion of 4.0)

Here's the code im working with using substring of IE version:

// <head>
<script language="JavaScript">
this.version = navigator.appVersion;

// <body>
<script language="JavaScript">

if (navigator.appName == "Microsoft Internet Explorer"){
if (version.substring(0,1) <= 4){
if (version.substring(22,23) <= 4){
document.write("This Browser is IE4 or lower!");
document.write("This Browser is IE5 or higher!");
document.write("This Browser isn't IE!");

document.write("<br>This Browser is " +version);

The version string usually return's something like this:

4.0 (compatible; MSIE 5.0; Windows 98; DigExt)

Can anyone see any problem with using this method?

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