求助，为什么onsubmit不执行

JScript code

<script Language="JavaScript">           function formck(myform1)     {         if (myform1.m1.value == "")         {            alert("提示：新密码不能为空！");            myform1.m1.focus();            return (false);         }          if (myform1.m2.value == "")         {            alert("提示：请再次确认新密码！");            myform1.m2.focus();            return (false);         }         if (myform1.m1.value.length < 6 || myform1.m1.value.length > 15)         {            alert("提示：填写6-15位密码！");            myform1.m1.focus();            return (false);         }         if (myform1.m2.value != myform1.m1.value)         {            alert("两次输入密码不同！");            myform1.2.focus();            return (false);         }                 return true    }</script><form action="" method="post" name="myform1" id="myform1" onsubmit="return formck(this)">    <tr align="left">      <td height="25" align="left">新密码：</td>      <td height="25" colspan="2"><input type="password" name="m1" size="20" /></td>    </tr>    <tr align="left">      <td height="25" align="left">确认新密码：</td>      <td height="25" colspan="2"><input type="password" name="m2" size="20" /></td>    </tr>    <tr align="center" valign="top">      <td colspan="3"><input type="submit" name="Submit" value=" 送出 "/></td>    </tr></form>

[解决办法]
if (myform1.m2.value != myform1.m1.value)
{
alert("两次输入密码不同！");
myform1.2.focus();
return (false);
}
少了个M