new Ajax.PeriodicalUpdater("user_online", self + "/process/user_online/ajax.index",
{
	method: 'get',
	parameters:
	{
		user_list: user_online_user_list
	},
	frequency: user_online_ajax_polling_interval,
	decay: 1
});

new Ajax.PeriodicalUpdater("", self + "/process/user_online/ajax.update_status",
{
	method: 'get',
	frequency: user_online_ajax_status_update_interval,
	decay: 1
});