//数字字符串检测函数：
    function number_Validator(obj)
    {
      var checkOK = "0123456789";
      var checkStr = obj.value;
      var allValid = true;
      var decPoints = 0;
      var allNum = "";
      for (i = 0;  i < checkStr.length;  i++)
      {
        ch = checkStr.charAt(i);
        for (j = 0;  j < checkOK.length;  j++)
          if (ch == checkOK.charAt(j))
            break;
        if (j == checkOK.length)
        {
          allValid = false;
          break;
        }
        allNum += ch;
      }

      if (checkStr=="") //空字符
        allValid = false;

      if (!allValid)
      {
        alert("只能输入整数字符串!");
        return (false);
      }
      return (true);
    }

  //打开窗口：
    function openwin(url, l, t, w, h)
    { open(url,'','toolbar=yes, location=no, status=yes, menubar=yes, scrollbars=yes, resizable=yes, width=' + w + ', height=' + h + ', left=' + l + ', top=' + t); }

  //窗口最大化：
    function MaxWindow()
    { var str='<object id=maxwin type="application/x-oleobject" classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"><param name="Command" value="MAXIMIZE"></object>';
      if(!document.getElementById("maxwin"))
      {
        document.body.insertAdjacentHTML("BeforeEnd",str);
      }
      maxwin.Click();
      //MaxAct=1;
    }

//改变页面字体大小:
function doZoom(size)
{
  document.getElementById('zoom').style.fontSize=size + 'pt';
}