limit number of pages displayed

Hi Everyone,

I wonder if anyone can help me I’m trying to limited the number of pages that the following code shows, any help any could give I’d very much appreciate

thanks

<?php
	$mypages = get_pages( array( 'child_of' => 2, 'sort_column' => 'post_date', 'sort_order' => 'rand' ) );

	foreach( $mypages as $page ) {
		$content = $page->post_excerpt;
		if ( ! $content ) // Check for empty page
			continue;

		$content = apply_filters( 'the_excerpt', $content );
	?>
		<h2><a>"><?php echo $page->post_title; ?></a></h2>
		<div class="entry"><?php echo $content; ?></div>
	<?php
	}
?>