javascript判断ie版本 function Browser() { var ua, s, i; this.isIE = false; // Internet Explorer this.isNS = false; // Netscape this.version = null; ua = navigator.userAgent; s = "MSIE"; if ((i = ua.indexOf(s)) >= 0) { this.isIE = true; this.version = parseFloat(ua.substr(i + s.length)); return; } s = "Netscape6/"; if ((i = ua.indexOf(s)) >= 0) { this.isNS = true; this.version = parseFloat(ua.substr(i + s.length)); return; } // Treat any other "Gecko" browser as NS 6.1. s = "Gecko"; if ((i = ua.indexOf(s)) >= 0) { this.isNS = true; this.version = 6.1; return; } } var browser = new Browser(); alert(browser); </ script> [Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]
