期待高手指导下！

<!--#include virtual="/admin/include/public.asp"-->
<%
  
    Call Openconn(conn,Connect_DataBase)   action=SafeSQL(Request.QueryString("action"))
  if action="add" then
         set rsPwd=server.CreateObject("ADODB.RecordSet")
         user_name=session("admin_name")
         pwd=md5(trim(SafeSQL(request("pwd"))),16)
         pwd1=md5(trim(SafeSQL(request("pwd1"))),16)
         rsPwd.open "select id from tblAdmin_user where user_name='"&user_name&"' and user_pwd='"&pwd&"'",conn
         if not rsPwd.eof then
                  conn.execute "update tblAdmin_user set user_pwd='"&pwd1&"' where user_name='"&user_name&"'"
                 session("admin_pwd")=pwd1
%>
                  <script language=javascript>
                   window.opener.alert('成功修改密码!');
                   window.close();
                  </script>
<%         else  %>
                  <script language=javascript>
                   window.opener.alert('旧密码错误!');
                   window.close();
                  </script>
<%         end if  %><%   end if    %><html>
<head>
<title>::::::::::::::::::::::::::::::::修改密码:::::::::::::::::::::::::::::</title>
<meta http-equiv="Content-Type" c>
<script language="JavaScript" src="include/coolbutton.js"></script><SCRIPT langauge="javascript">
function trim(string) {
   var tmpchar, i, j, result;   i = 0;
   tmpchar = string.charAt(i);
   while (tmpchar == ' ') {
      i ++;
      tmpchar = string.charAt(i);
   }   j = string.length - 1;
   tmpchar = string.charAt(j);
   while (tmpchar == ' ') {
      j--;
      tmpchar = string.charAt (j);
   }
   if ( i <= j)
      result = string.substring(i,j+1);
   else
      result = "";
   return result;
}function notNull(fieldname,string)
{
   string.value=trim(string.value);
   if (string.value == "") {
      alert(fieldname+"不能为空");
      string.focus();
      return false;
                    }
  else
   return true;
  }
function notsame(string1,string2)
{
   string1.value=trim(string1.value);
   string2.value=trim(string2.value);   if (string1.value!==string2.value) {
      alert("两次密码输入不一样！");
      string1.focus();
      return false;
                    }
  else
   return true;
  }
function validform(choiceForm)
  {      if(notNull(" 旧密码 ",choiceForm.pwd)&¬Null(" 新密码 ",choiceForm.pwd1)&¬Null(" 确认密码 ",choiceForm.pwd2)&¬same(choiceForm.pwd1,choiceForm.pwd2))return true;
      return false;
}
</script>
</head><body bgcolor="#dddddd" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<form name="choiceForm"  action="cpwd.asp?action=add" method="post">  <table Border=0 cellpadding=4 width="500">
    <tr>
      <TD width="75"> 用 户 名:</td>
      <td width="204">
        <input  type="text" name="users" size="33" value="<%=trim(session("admin_name"))%>" style="" maxlength="20" disabled bgcolor=#666666 >
      </td>
      <td rowspan="4" align="center" valign="middle">
        <input type="submit"   style="font-family: 宋体; width:70px;font-size: 10.5pt; background-image: url('images/1.gif');padding-top:4px; background-repeat: no-repeat; border: 1px ridge; background-position: left center;margin-bottom:5" type="button" value="  确定" >
        <br>
        <br>
        <input type="button" style="font-family: 宋体;width:70px; font-size: 10.5pt; background-image: url('images/delete.gif');padding-top:4px; background-repeat: no-repeat; border: 1px ridge; background-position: left center;margin-bottom:5" value="  取消" >
        <br>
      </td>
    <tr>
      <td width="75">旧 密 码:</td>
      <td width="204">
        <input  type="password" name="pwd" size="33"  value="" maxlength="20">
      </td>
    </tr>    <tr>
      <td width="75">新 密 码:</td>
      <td width="204">
        <input  type="password" name="pwd1" size="33" value="" maxlength="20">
      </td>
    </tr>
    <tr>
      <td width="75">确认密码:</td>
      <td width="204">
        <input  type="password" name="pwd2" size="33" value="" maxlength="20">
      </td>
    </tr>
  </table>
</form>
</body>
</html>等待高手。