Getting Browser language and redirecting to appropriate site

[Minarai]

I'm designing a multi-lingual site (At this point English and Japanese) and I want to create a script to direct the visitor to the appropriate gateway and set the default as english.

If I test the following code on my browser (IE 5.0), I get directed to the default English site even though my os and browser language is set to Japanese.

but if I remove the default it properly goes to the Japanese.

What should I do to correct this?
What am I doing wrong?

Thanks in advance..

<script language=&quot;javascript&quot;>
<!--
function getlanguage(){
language=navigator.language;
if(language){language=language.substring(0,2);}
else{language=&quot;z&quot;;}
switch (language){
case &quot;ja&quot; :
window.location=&quot;jap.htm&quot;;
break;
case &quot;en&quot; :
window.location=&quot;eng.htm&quot;;
break;
default :
window.location=&quot;eng.htm&quot;;
}

}
// -->
</script>

 

[GIGN]

The language attribute of the navigator object is not supported by IE at all - it is undefined.
You will have to use VBScript to find out. I don't know how to do this. ;-)