Dynamic name changing

[magnetica]

Hi I have a piece of code which calls upon AJAX and an external file to display something from the database, now the code below works fine but because it is within a loop it always echo's to the top div on the page. Take a look

<?php
		$ajax = new Ajax('displayArea');
		?>
	<form>
		<input type="button" value="Click me" name="name_button" onclick="sendReq('serverfile.php', 'id', '<?=$yt_id?>')" />
	
	</form>
	
	<br/>
	<div id="displayArea">
		Hello
	</div>

Now I understand that this is probably due to the fact that the id for the div's are the same all the way down so it echoes to the top one.

Or I thought I might also have to dynamically change the object name but how do I do this?

Any thoughts? Thanks