160;&#160;&#160;&#160;else
<br>
&#160;&#160;&#160;&#160;&#160;&#160;checkbox.image_node.src= "images/unchecked.gif";
<br>

<br>
&#160;&#160; }&#160;&#160;// endif

<br>

<br>
&#160;&#160;&#160;&#160;return browser.stopPropagation(e);
<br>

<br>
} // end handleCheckboxKeyDownEvent
<br>

<br>
/**
<br>
 * handleCheckboxKeyDownEvent processes keys associated with a checkbox 
<br>
 *

<br>
 * @param ( event ) event is the event handler for the event
<br>
 * @param ( Checkbox object ) checkbox is the Checkbox obj