//TYPO3 6.2
//typo3/sysext/frontend/Classes/Controller/TypoScriptFrontend/Controller.php
	public function previewInfo() {
		if ($this->fePreview !== 0) {
			$previewInfo = '';
			if (isset($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['hook_previewInfo']) && is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['hook_previewInfo'])) {
				$_params = array('pObj' => &$this);
				foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['hook_previewInfo'] as $_funcRef) {
					$previewInfo .= GeneralUtility::callUserFunction($_funcRef, $_params, $this);
				}
			}
			$this->content = str_ireplace('</body>', $previewInfo . '</body>', $this->content);
		}
	}