(function(){
try {
function getterHook(obj, name, cb) {
    if (document.__defineGetter__) {
        document.__defineGetter__(name, cb);
        return;
    }
    if ((obj && obj.prototype && Object) &&
        (Object.getOwnPropertyDescriptor) &&
        (Object.getOwnPropertyDescriptor(obj.prototype, name)) &&
        (Object.getOwnPropertyDescriptor(obj.prototype, name).get) &&
        (Object.getOwnPropertyDescriptor(obj.prototype, name).configurable)) {
        Object.defineProperty(obj.prototype, name, { get : cb });
        return;
    }
}
function asmReferrerGetter() { return ""; }
getterHook(Document, "referrer", asmReferrerGetter);
} catch(e) {}
})();