getAjaxResult for python selenium

selenium-ajax.py

    def getAjaxResult(self, func, *args):
        sel = self.selenium
        self.js('''\
            ajaxSeleniumResult = (function (func, args) {
                var result = [], funcArgs;
                function storeSeleniumResult() {
                    result.push(window.jQuery.makeArray(arguments));
                }
                // assume function's last argument is a callback
                args.push(storeSeleniumResult);
                func.apply(null, args);
                return result;
            }(%s, %%s));
            ''' % (func,), args)
        sel.wait_for_condition('ajaxSeleniumResult.length !== 0', 1500);
        return simplejson.loads(
            sel.get_eval('window.jQuery.toJSON(ajaxSeleniumResult[0]);'))