关闭当前窗口js

function CloseWebPage(){
	if (navigator.userAgent.indexOf("MSIE") > 0) {
		if (navigator.userAgent.indexOf("MSIE 6.0") > 0) {
			window.opener = null;
			window.close();
		} else {
			window.open('', '_top');
			window.top.close();
		}
	}
	else if (navigator.userAgent.indexOf("Firefox") > 0) {
		window.location.href = 'about:blank ';
	} else {
		window.opener = null;
		window.open('', '_self', '');
		window.close();
	}
}