protected function getId($fieldId, $fieldName)
	{
		$id = '';

		// If there is a form control set for the attached form add it first.
		if ($this->formControl)
		{
			$id .= $this->formControl;
		}

		// If the field is in a group add the group control to the field id.
		if ($this->group)
		{
			// If we already have an id segment add the group control as another level.
			if ($id)
			{
				$id .= '_' . str_replace('.', '_', $this->group);
			}
			else
			{
				$id .= str_replace('.', '_', $this->group);
			}
		}

		// If we already have an id segment add the field id/name as another level.
		if ($id)
		{
			$id .= '_' . ($fieldId ? $fieldId : $fieldName);
		}
		else
		{
			$id .= ($fieldId ? $fieldId : $fieldName);
		}

		// Clean up any invalid characters.
		$id = preg_replace('#\W#', '_', $id);

		return $id;
	}