var YAHOO = function() {
    return {
         util: {},
        widget: {},
        example: {},
           namespace: function( sNameSpace ) {
            if (!sNameSpace || !sNameSpace.length) {
                return null;            }
            var levels = sNameSpace.split(".");
            var currentNS = YAHOO;
               for (var i=(levels[0] == "YAHOO") ? 1 : 0; i<levels.length; ++i) {
                currentNS[levels[i]] = currentNS[levels[i]] || {};
                currentNS = currentNS[levels[i]];
            }
           return currentNS;
        }
    };
} ();