IE浏览器判断

$(function () {
	//判断是否为IE
	if (! +[1, ]) {
	}
	else {
	}
	var navigatorName = "Microsoft Internet Explorer";
	var isIE = false;
	if (navigator.appName == navigatorName) {
	isIE = true;
	} else {
	}
	if (document.all) {
	} else {
	}
	if (!!window.ActiveXObject || "ActiveXObject" in window) {
	}
	else {
	}
	});