Strict Notice: Only variables should be passed by reference  in /var/www/svn_magento_riddell/app/design/frontend/enterprise/riddell_2013/template/page/html/head.phtml on line 30

#0 /var/www/svn_magento_riddell/app/design/frontend/enterprise/riddell_2013/template/page/html/head.phtml(30): mageCoreErrorHandler(2048, 'Only variables ...', '/var/www/svn_ma...', 30, Array)
#1 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Template.php(251): include('/var/www/svn_ma...')
#2 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Template.php(282): Mage_Core_Block_Template->fetchView('frontend/enterp...')
#3 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Template.php(296): Mage_Core_Block_Template->renderView()
#4 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Core_Block_Template->_toHtml()
#5 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Abstract.php(582): Mage_Core_Block_Abstract->toHtml()
#6 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Abstract.php(526): Mage_Core_Block_Abstract->_getChildHtml('head', true)
#7 /var/www/svn_magento_riddell/app/design/frontend/enterprise/riddell_2013/template/page/1column.phtml(38): Mage_Core_Block_Abstract->getChildHtml('head')
#8 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Template.php(251): include('/var/www/svn_ma...')
#9 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Template.php(282): Mage_Core_Block_Template->fetchView('frontend/enterp...')
#10 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Template.php(296): Mage_Core_Block_Template->renderView()
#11 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Core_Block_Template->_toHtml()
#12 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#13 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#14 /var/www/svn_magento_riddell/app/code/core/Mage/Cms/controllers/IndexController.php(91): Mage_Core_Controller_Varien_Action->renderLayout()
#15 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Controller/Varien/Action.php(419): Mage_Cms_IndexController->defaultNoRouteAction()
#16 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('defaultNoRoute')
#17 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#18 /var/www/svn_magento_riddell/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#19 /var/www/svn_magento_riddell/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#20 /var/www/svn_magento_riddell/index.php(109): Mage::run('base', 'website')
#21 {main}