js關閉當前頁面比較兼容的辦法

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();
    }
}