protected function getInput()
	{
		$html = array();

		// Initialize some field attributes.
		$class = $this->element['class'] ? ' class="checkboxes ' . (string) $this->element['class'] . '"' : ' class="checkboxes"';
		$checkedOptions = explode(',', (string) $this->element['checked']);

		// Start the checkbox field output.
		$html[] = '<fieldset id="' . $this->id . '"' . $class . '>';

		// Get the field options.
		$options = $this->getOptions();

		// Build the checkbox field output.
		$html[] = '<ul>';

		foreach ($options as $i => $option)
		{
			// Initialize some option attributes.
			if (!isset($this->value) || empty($this->value))
			{
				$checked = (in_array((string) $option->value, (array) $checkedOptions) ? ' checked="checked"' : '');
			}
			else
			{
				$value = !is_array($this->value) ? explode(',', $this->value) : $this->value;
				$checked = (in_array((string) $option->value, $value) ? ' checked="checked"' : '');
			}

			$class = !empty($option->class) ? ' class="' . $option->class . '"' : '';
			$disabled = !empty($option->disable) ? ' disabled="disabled"' : '';

			// Initialize some JavaScript option attributes.
			$onclick = !empty($option->onclick) ? ' onclick="' . $option->onclick . '"' : '';
			$label   = $this->translateLabel ? $this->getText()->translate($option->text) : $option->text;

			$html[] = '<li>';
			$html[] = '<input type="checkbox" id="' . $this->id . $i . '" name="' . $this->name . '"' . ' value="'
				. htmlspecialchars($option->value, ENT_COMPAT, 'UTF-8') . '"' . $checked . $class . $onclick . $disabled . '/>';

			$html[] = '<label for="' . $this->id . $i . '"' . $class . '>' . $label . '</label>';
			$html[] = '</li>';
		}

		$html[] = '</ul>';

		// End the checkbox field output.
		$html[] = '</fieldset>';

		return implode($html);
	}