Browser detect not working

[admin]

This browser detection code does not work on IE 6.0 that does not have the JVM installed. Any advice on how to change it?

n=navigator;
var jOn=false;
jOn=n.javaEnabled();

var doc=document;dl=doc.layers;da=doc.all;dg=doc.getElementById;n=navigator;db=doc.body;var jOn=false;weSupport=(dg||da||dl);
if (weSupport) {
jOn=n.javaEnabled();
}
if (jOn)
{
//do stuff
}
else {
//failover
}
//-->