<?php

include "../inc/chec.php";

?>

<script src="../js/admin_js.js"></script>

<link href="../css/style.css" rel="stylesheet">

<table width="765" height="450" border="0" cellpadding="0" cellspacing="0" style="border: 1px solid #9CBED6; margin-top:15px;">

<tr><td align="center" valign="middle">

<form name="mod_pwd" id="mod_pwd" method="post" action="modify_pwd_chk.php">

  <table width="300" height="116" border="0" cellpadding="0" cellspacing="0">

    <tr>

      <td width="126" align="right" valign="middle">旧密码：</td>

      <th width="174" align="left" valign="middle"><input name="old_pwd" type="password" id="old_pwd" size="15"></th>

    </tr>

    <tr>

      <td align="right" valign="middle">新密码：</td>

      <td align="left" valign="middle"><input name="new_pwd" type="password" id="new_pwd" size="15"></td>

    </tr>

    <tr>

      <td align="right" valign="middle">确认密码：</td>

      <td align="left" valign="middle"><input name="two_pwd" type="password" id="two_pwd" size="15"></td>

    </tr>

    <tr>

      <td colspan="2" align="center" valign="middle"><input type="submit" nanme="submit" value="修改" onclick="return mod_chk();"></td>

    </tr>

  </table>

</form>

</td></tr></table>

modify_pwd_chk.php代码：

<?php

session_start();

include "../inc/chec.php";

include "../conn/conn.php";

$sqlstr = "select * from tb_controller where id = ".$_SESSION[id]." and mana_pwd = '".$_POST[old_pwd]."'";

$result = mysql_query($sqlstr,$conn);

if($rows = mysql_fetch_row($result)){

$modsql = "update tb_controller set mana_pwd = '".$_POST[new_pwd]."' where id = ".$_SESSION[id];

if(mysql_query($modsql,$conn))

echo "<script>alert('密码修改成功');history.go(-1);</script>";

else

echo "<script>alert('密码修改失败');history.go(-1);</script>";

}

else{

echo "<script>alert('密码错误，请重新输入！');history.go(-1);</script>";

}

?>

admin_js.js代码：

//修改管理员密码

function mod_chk(){

var dmp = document.mod_pwd;

if(dmp.old_pwd.value == "" || dmp.new_pwd.value == "" || dmp.two_pwd.value == ""){

alert("密码框不允许为空");

return false;

}

if(dmp.new_pwd.value != dmp.two_pwd.value){

alert("两次密码不一致");

return false;

}

}