/*
* Custom
* it is a content type
* virtual_office_4
*/

function colourise_preprocess_page(&$vars, $hook) {
  if (isset($vars['node'])) {
   // If the node type is "blog" the template suggestion will be "page-blog.tpl.php".
   $vars['template_files'][] = 'page-'. str_replace('_', '-', $vars['node']->type);
  }
}