nput.value
x = (x.substring) - 1
}
//  End -->
</script>
<div align="center">
<form name="form" method="post" action="javascript:doit()">
  <table width="260" border="0" height="260" align="center" bordercolor="#000000" bgcolor="#000000">
    <tr bgcolor="#000000">
      <td colspan="7" height="2">
        <div align="center"><b><font face="Arial, Helvetica, sans-serif" color="#FFFFFF">考勤计算器</font></b></div>
      </td>
    </tr>
    <tr bgcolor="#000000">
      <td colspan="7" height="2">
       