Collapsing content widget

gistfile1.txt

<div id="east-oakland-expand" class="collapseomatic subpage-expander">See More</div>
<div class="subpage">
	<?php
		$page = get_page_by_title( 'Why East Oakland?' );
		$content = apply_filters('the_content', $page->post_content); 
		$excerpt = substr($content, 0, strpos($content, '<p>', 1000));
	?>
	<div class="subpage-visible collapseomatic_content">
		<?php
		echo $excerpt;
		?> 
	</div>
	<div id="target-east-oakland-expand" class="subpage-hidden collapseomatic_content" rel="partners-expand">
		<?php
			if (substr($content, 0, strlen($excerpt)) == $excerpt) { $content = substr($content, strlen($excerpt)); }
			echo $content
		?>
<span class="collapseomatic colomat-close" id="why-oakland-expand">Click Here to Close</span>
	</div>
</div>

WordPress text (php) widget to pull page content into collapsible sub-page. Excerpt cuts off at end of paragraph, so preserves text formatting