public function goBack()
    {
        $recArr = $this->readInputRecord();
        $this->setActiveRecord($recArr);
		$this->activeRecord = $this->readInputRecord();
		
        $viewObj = $this->getWebpageObject();
        
        // get the step
        if($viewObj->getCurrentStep()){
        	$step = $viewObj->getCurrentStep();
        }else{
        	$step = $_GET['step'];
        }

        // redirect the prev step
        /* @var $viewObj WebPageWizard */
        
        $viewObj->renderStep($step-1);
    }