Newbie Question - Save?

I'm very new in ASP/CKeditor, and I just managed to insert the editor in my site, what I don't know is how to save the result after I write something. I don't know what is missing. Can someone tell me what is missing?

Here is the code:

<form method="post">
<textarea name="editor1">&lt;p&gt;Initial value.&lt;/p&gt;</textarea>
<script type="text/javascript">
CKEDITOR.replace( 'editor1' );
</script>
</p>   
</form> 

<input type="hidden" name="editor1" value="" ID="editor1">
<br>
<input onclick="save()" type="image" name="imageField" src="imagens/btn_gravar.gif">
<br>
</div>
</form></td>
</tr>
</table>
<br>