quick toggle using jquery

HTML

<div class='collapsible'>
  <h3>I'm a header</h3>
  <p style='background:orange; display:none;'>I'm the collapsible content. By default I'm closed, but you can click the header to open me.</p>
</div>

JavaScript

$(document).ready(function(){
	$('.collapsible h3').click(function(){
  	$(this).next().slideToggle();
  })
});