屏蔽低版本ie浏览器.txt

var Sys = {};
			var ua = navigator.userAgent.toLowerCase();
			alert(ua)
			if (window.ActiveXObject) {

				Sys.ie = ua.match(/msie ([\d.]+)/)[1];
				alert(ua.match(/msie ([\d.]+)/))
				if (Sys.ie <= 12) {
					alert('你目前的IE版本为' + Sys.ie + '版本太低，请升级！');
					// location.href = "http://windows.microsoft.com/zh-CN/internet-explorer/downloads/ie";
				}
			}