";
   $fp = @fopen($open_passwd_admin,'w')  or die("Unable to open file!");
   fwrite($fp, $content);
   fclose($fp);
   echo '1';
   //echo "";
  }elseif($_POST['user'] == 'pi'){
   $content = "";
   $fp = @fopen($open_passwd,'w')  or die("Unable to open file!");
   fwrite($fp, $content);
   fclose($fp);
   echo '1';
   //echo "";
  }
  
 }else{
  echo '0';
 }
?>