How can I make function for multiple instances
<p>I have written a small code to show hide element and its working fine. What can I do to make it work on multiple instances. How can I make code for multiple instances</p>

<pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
&lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
&lt;head&gt;
&lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8" /&gt;
&lt;title&gt;Untitled Document&lt;/title&gt;
&lt;style&gt;
.heading{ font-size:18px}
.paragraph{ font-size:12px; height:0; overflow:hidden; background-color:#CCCCCC;}
.close{ color:#FF0000; font-weight:bold;}

&lt;/style&gt;
&lt;script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"&gt;&lt;/script&gt;

&lt;/head&gt;
&lt;div&gt;
    &lt;h1 class="heading"&gt;This is Heading&lt;/h1&gt;
    &lt;p class="paragraph"&gt;This is paragraph. This is paragraph. This is paragraph. This is paragraph. This is paragraph. This is paragraph. This is paragraph.&lt;br/&gt;&lt;span class="close"&gt;Close&lt;/span&gt; &lt;/p&gt;
&lt;/div&gt;
&lt;div&gt;
    &lt;h1 class="heading"&gt;This is Heading&lt;/h1&gt;
    &lt;p class="paragraph"&gt;This is paragraph. This is paragraph. This is paragraph. This is paragraph. This is paragraph. This is paragraph. This is paragraph.&lt;br/&gt;&lt;span class="close"&gt;Close&lt;/span&gt; &lt;/p&gt;
&lt;/div&gt;

&lt;script&gt;
$('h1.heading').click(function(){
$clickedElement=$(this);
$('$clickedElement.paragraph').animate({'height':'50px'},1000);
})

$('.close').click(function(){
$('.paragraph').animate({'height':'0px'},1000);
})
&lt;/script&gt;

&lt;/body&gt;
&lt;/html&gt;
</code></pre>
