var yuipath = 'clientscript/yui';
var yuicombopath = '';
var remoteyui = false;
else // Load Rest of YUI remotely (where possible)
var yuipath = 'http://yui.yahooapis.com/2.9.0/build';
var yuicombopath = 'http://yui.yahooapis.com/combo';
var remoteyui = true;
Works on IE.. Mozilla for some reason kept coming up with a dead link.
Dunno why , I only use Firefox and it worked for me , only thing I could think of maybe your firewall , I have problems sometimes with firefox and my firewall , sometimes I have to disable it too view a site or download.