<?
     if(isset($_POST['reseta_wl'])) {
        $dbhost = '127.0.0.1';
        $dbuser = 'root';
        $dbpass = '';

        $conn = mysql_connect($dbhost, $dbuser, $dbpass);

        if(! $conn ) {
           die('Could not connect: ' . mysql_error());
        }

        $id = $_SESSION['s_usuario'];

        $sql = "UPDATE game ". "SET credito = 30 ".
           "WHERE id = $id" ;
        mysql_select_db('gbwc');
        $retval = mysql_query( $sql, $conn );

        if(! $retval ) {
           die('Could not update data: ' . mysql_error());
        }
        echo "Updated data successfullyn";

        mysql_close($conn);
     } else {
        ?>
          <form method="post" action="<?php $_PHP_SELF ?>">
           <input type="button" name="reseta_wl" value="Resetar">
          </form>
        <?
     }
  ?>