js关闭当前页面比较兼容的办法

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();
}
}