TextBox Insert

[Bioshox]

Hey guy

Okay, I want to add <b> </b> tags into a textbox without removing the current text there

I currently have the code

<script type="text/javascript" language="javascript"><!--

function ChgText()
{
   var MyElement = document.getElementById("content");
   MyElement.value = "<b>  </b>";

   return true;
}

//--></script>
	
	<p>
	<form action='addpost.php' method='post'>
	<h3>Title:</h3>
	<input type="button" onclick="ChgText()" value="b"/><br/>
	<input type='text' name='title' size='63.5' /><br>
	<h3>Body:</h3> 
	<textarea id='content' name='content' rows='15' cols='50'></textarea>
	<br>
	<input type='submit' name='submit' value='Publish' />
	</p>

What need's adding to this to make it work correctly?

Thanks
Shox.

[Bioshox]

Anyone D:?