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As with any new technology, DHTML is not 100% available to all the people who come to view your web pages. This can result in problems when someone with a non 4.0 - version browser looks at a page which was created with the “CSS and Layers” HTML Output setting...
To that end, here’s a JavaScript (readable by 3.0 browsers) procedure to (a) detect the version of the browser reading the page and (b) automatically direct the customer to the appropriate (CSS or non-CSS) page.
To see this Javascript in action, click here.
This script uses the navigator.appVersion property, specifically the first character of that property, which is always a version number. Since we know that all browsers before 4.0 can have problems dealing with CSS pages, we know to route these viewers to a more 3.0-friendly page...
Insert the following code into the “Between Head Tags” field of the “Layout HTML” window:
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<SCRIPT LANGUAGE=”JavaScript”>
<!-- Hide from non-JS Aware Browsers
function checkver()
{
if(navigator.appVersion.substring(0,1) < 4)
{ window.location=”URL”}
else
{ window.location=”URL2”}
}
// end hiding -->
</SCRIPT>
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Where URL and URL2 are the URLs you want the browser to be redirected to.
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If you are using this just to direct pre-4.0 browsers away from the page, you can remove everything in italics since the code in italics routes the browser to a page only if the browser is of a version higher than 3.
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And insert this code into the “Inside Body Tag” field:
And that should do it. |
