refresh MODx resource tree

switch ($modx->event->name) {
    case 'OnResourceDelete':
	echo "<script type=\"text/javascript\">Ext.getCmp('modx-resource-tree').refresh();</script>";
	break;
}
return;

switch ($modx->event->name) {
    case 'OnResourceDelete':
    $modx->event->output("<script type=\"text/javascript\">Ext.getCmp('modx-resource-tree').refresh();</script>");
    break;
}
return;