public function decorateTime($value, $echoToday = false, $dateFormat = null)
    {
        if (empty($value) || $value == '0000-00-00 00:00:00') {
            $value = '';
        } else {
            $value = Mage::getModel('core/date')->date($dateFormat, $value);
            $replace = array(
                Mage::getModel('core/date')->date('Y-m-d ', time()) => $echoToday ? Mage::helper('aoe_scheduler')->__('Today') . ', ' : '', // today
                Mage::getModel('core/date')->date('Y-m-d ', strtotime('+1 day')) => Mage::helper('aoe_scheduler')->__('Tomorrow') . ', ',
                Mage::getModel('core/date')->date('Y-m-d ', strtotime('-1 day')) => Mage::helper('aoe_scheduler')->__('Yesterday') . ', ',
            );
            $value = str_replace(array_keys($replace), array_values($replace), $value);
        }
        return $value;
    }