l">functionValidationFailed</span>:Function</code> (default = <code>null</code>)<code></code></td>
</tr>
<tr>
<td class="paramSpacer">&nbsp;</td>
</tr>
<tr>
<td width="20px"></td><td><code><span class="label">errorString</span>:String</code> (default = <code>null</code>)<code></code></td>
</tr>
</table>
</div>
<a name="addTrigger()"></a>
<table cellspacing="0" cellpadding="0" class="detailHeader">
<tr>
<td class="detailHeaderName">addTrigger</td><td class="detailHeaderParens">()</td><td class="