onClick insert or append text into a textarea
<p>I'd like to get this right without wasting any more time on posts that seem they almost answer it, but don't. Thanks for your help.
I want to click Book and have the value of 'lit:' entered or appended into a text area named Discussion in which some text already resides. Please correct my errors so my four remaining brain cells can be happy. Thank you.</p>

<pre><code>&lt;script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"&gt;&lt;/script&gt;

&lt;php $m=1;?&gt;

&lt;Book&gt;Book&lt;/Book&gt;
&lt;textarea name="Discussion[]" class="cleanup mceEditor" 
id="Discussion&lt;?php echo $m;?&gt;"&gt;&lt;?php echo $row_review['Discussion']; ?&gt;&lt;/textarea&gt;


&lt;script type="text/javascript"&gt;
$(document).ready(function(){ 
   $("Book").click(function(){
      $("#Discussion&lt;?php echo $m;$m++;?&gt;").val('lit:');
   }); 
}); 
&lt;/script&gt;
</code></pre>
