profiel.php?user=gebruikersnaam hoe doe ik dit?

<?php
session_start();
include 'functies.php';
top();
menu();
links();
echo '<title>'.$web_naam.' | Profiel</title>';

$profiel_result = mysql_query("SELECT * FROM users WHERE '".$_SESSION['user']."'");
$rows = mysql_fetch_assoc($profiel_result);

if(isset($_SESSION['user']))
{
?>
<!-- Pagetitle -->
        <h1>Profiel van <? echo $rows['user']; ?></h1>

        <!-- Content unit - One column -->
        <div class="column1-unit">
        <table width="500px" align="left">
        	<tr align="left">
        		<th height="120px" width="120px"><img width="100px" height="100px" src="<? echo $rows['avatar']; ?>" /></th>
        		<th>Gebruikersnaam: <? echo $rows['user']; ?><br />
        			Email: <? echo $rows['email']; ?><br />
        			Rang: <? echo $rows['rang']; ?><br />
        			Lid sinds: <? echo $rows['reg_datum']; ?><br />
        			Website: <? echo $rows['website']; ?><br />
        			KVK: <? echo $rows['kvk']; ?><br />
        			Kladblok: <a href="kladblok.php">Kladblok</a><br />
        			Nieuwsbrief: <? echo $rows['nieuwsbrief']; ?><br />
        			Uitloggen: <a href="loguit.php">Log uit!</a>
        		</th>
        	</tr>
        	<tr>
        		<th><strong>Websites</strong></th>
        		<td>
 				<? echo $rows['website']; ?>
 				</td>
 			</tr>
 			<tr>
 				<th>Onderschrift:</th>
 				<td><pre><textarea rows="5" cols="35"><? echo $rows['onderschrift']; ?></textarea></pre></td>
        </table>
        		
        		
        
        </div>
        <hr class="clear-contentunit" />        
<?php
}
footer();
?>