Triggers during the group page load.

<?php
function my_component_init(){
		ossn_register_callback('page', 'load:group', 'my_component_cb');
}
function my_component_cb($callback, $type, $params = null){
		//it have no paramters values.
		//you can use ossn_get_page_owner_guid function to get a group GUID.
}
ossn_register_callback('ossn', 'init', 'my_component_init');