get the browser version using XSLT and java script

Hi,
I want to embed some javascript code into the XSLT transformation, which detects the user's browser.
The code i wrote is shown below:

 <msxsl:script language="JavaScript" implements-prefix="user">
    <![CDATA[
    function getBrowser() {
       return navigator.appName;
    }
    ]]>
  </msxsl:script>

But when the style sheet is used in the transformation, it says that the variable 'navigator' is not declared. but 'navigator' is a key javascript object.
Can somebody explain why this is so?

Best Regards,
suralk

Hi there

Try output a message, alert("something") to debug first.