<script language="javascript">
    function doCloseDuration(f) {
        showWaitModal();
        var form = $(f);
        var url = form.attr('action');
        var dataString = form.serialize();
        jQuery.ajax({
            url: url,
            data: dataString,
            type: "POST",
            success: function (data) {
                if (!isDataOk(data)) {
                    showMsg([itxt("thatbai"), getDataFail(data)], itxt("khoasocuoiky"));
                    return;
                }
                showMsg(itxt("thanhcong"), itxt("khoasocuoiky"));
            },
            error: function () {
                hideModal();
                showMsg(itxt("thatbai"), itxt("khoasocuoiky"));
            }
        });
        return false;
    }
</script>

<form method="POST" action="?page=ht_khoasocuoiky" onsubmit="return doCloseDuration(this)">
    <input type="hidden" name="action" value="do">
    <div align="center">
        <div style="width:250px;margin:5px;font-weight: bold;">
            <p class="bb">
                Kỳ hiện tại: {_CURRENT_}
            </p>
            <input type="submit" class="buttonbig" value="Khóa sổ" style="width:100%;float:left">
        </div>
    </div>
</form>