【My97datepicker】在IE9下采用‘yyyy-MM’格式时会出现11111111

 var userAgent = navigator.userAgent;
            var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
            reIE.test(userAgent);
            var fIEVersion = parseFloat(RegExp[‘$1‘]);
            if (fIEVersion == 9 && this.dateFmt == ‘yyyy-MM‘) {
                try {
                    var ifr = J.dd.childNodes[0].contentWindow.document.childNodes[0].childNodes[1].childNodes[1].childNodes[1];
                    if (ifr) {
                        ifr.style.width = ‘180px‘;
                        ifr.style.height = ‘141px‘;
                    }
                } catch (o) {

                }
            }