Thank you for your response.
I added your function in my Child theme to one that was already there. However, I received an error message:
Parse error: syntax error, unexpected ‘return’ (T_RETURN) in C:\xampp\htdocs\curly2013_wp\wp-content\themes\orbit-child-01\functions.php on line 9
Line 9 is the return $output; reference
Any ideas how to fix this?