การถอด encryp password ตอน login ทำยังงัยค่ะ

<?php
session_start() ;

$user_login = $_POST['user_login'];
$pwd_login = $_POST['pwd_login'];

if(isset($user_login) and isset($pwd_login)) 
{
include("conn.php") ;
?>

<?php 
$result = mysql_query("SELECT * FROM member INNER JOIN permission ON member.member_id = permission.member_id WHERE user='$user_login' and password='$pwd_login' and status='A' ") ;
$num = mysql_num_rows($result) ;
if($num<=0) 
{
echo "<br><br><center><span clASs=style16>ไม่ถูกต้อง</span></center>" ;
print "<meta http-equiv=refresh content=1;URL=login.php>";
}
else 
{
	
$dbarr = mysql_fetch_array($result) ;
if($user_login!=$dbarr['user'] and $pwd_login!=$dbarr['password'] and $id!=$dbarr['id'] and $name!=$dbarr['name'] and $m1!=$dbarr['m1'] and $m2!=$dbarr['m2'] and $m_logout!=$dbarr['m_logout'] ) 
{
echo "ไม่ถูกต้อง" ;
}
else
{
$_SESSION['login_true'] = $user_login;
$_SESSION['u_name'] = $dbarr['name'];
$_SESSION['u_group'] = $dbarr['group'];
$_SESSION['m_id'] = $dbarr['id'];
$_SESSION['m1'] = $dbarr['m1'];
$_SESSION['m2'] = $dbarr['m2'];
$_SESSION['m_logout'] = $dbarr['m_logout'];

if ($_SESSION['m1'] == 1) $show1='<tr><td width=10%><div align=center><img src=img/bullet.gif></div></td><td width=90%><span clASs=style10><a href=xxx.php>xxxxxxx</a></span></td>';
echo $show1;

if ($_SESSION['m2'] == 1) $show2='<tr><td width=10%><div align=center><img src=img/bullet.gif></div></td><td width=90%><span clASs=style10><a href=xxxxx.php>xxxxxx</a></span></td>';
echo $show2;

if ($_SESSION['m_logout'] == 1) $show='<tr><td width=10%><div align=center><img src=img/bullet1.gif></div></td><td width=90%><span clASs=style10><a href=logout.php>Log out</a></span></td>';
echo $show;

}
}
}
?>