Chrome showModalDialog undefined is not a function 的替代方案

function myShowModalDialog(url, width, height, fn) {
    if (navigator.userAgent.indexOf("Chrome") > 0) {
        window.returnCallBackValue354865588 = fn;
        var paramsChrome = ‘height=‘ + height + ‘, width=‘ + width + ‘, top=‘ + (((window.screen.height - height) / 2) - 50) +
            ‘,left=‘ + ((window.screen.width - width) / 2) + ‘,toolbar=no, menubar=no, scrollbars=no, resizable=no, location=no, status=no‘;
        window.open(url, "newwindow", paramsChrome);
    }
    else {
        var params = ‘dialogWidth:‘ + width + ‘px;dialogHeight:‘ + height + ‘px;status:no;dialogLeft:‘
                    + ((window.screen.width - width) / 2) + ‘px;dialogTop:‘ + (((window.screen.height - height) / 2) - 50) + ‘px;‘;
        var tempReturnValue = window.showModalDialog(url, "", params);
        fn.call(window, tempReturnValue);
    }
}
function myReturnValue(value) {
    if (navigator.userAgent.indexOf("Chrome") > 0) {
        window.opener.returnCallBackValue354865588.call(window.opener, value);
    }
    else {
        window.returnValue = value;
    }
}

myShowModalDialog("Channel-Operation-" + $(this).attr("data-id"), 500, 300, function (v) {
    if (v == 1) {
        loadList();
    }
});

myReturnValue(1);
window.close();