[RESOLVED] Where are the header and headinclude templates rendered?

[ozzy47]

What about the hook, template_render_output

   
            if ($this->template == 'header')
            {
                $this->template = 'header_alt';
            }
            if ($this->template == 'headinclude')
            {
                $this->template = 'headinclude_alt';
            }