whole page if not specified.</td>
	</tr>
	<tr>
<td><code><b>getWheelDelta</b>(
<nobr>&lt;DOMEvent&gt; <i>e</i> )</nobr>
</code></td>

<td><code>Number</code></td>
<td>Gets normalized wheel delta from a <code>mousewheel</code> DOM event.</td>
	</tr>
</table>




