function find_tourplan(year,month){
	
$('tourplan_calendar').update('<img alt="Loading..." src="/system/layout/images/ajax_loader.gif" />');
		var ajax = new Ajax.Request('/system/tourplan_calendar.php?y='+year+'&m='+month, {
				method: 'get',
				onSuccess: function(transport) {
					var result = $('tourplan_calendar');
					result.update(transport.responseText);
				}
			});
			
	return false;
}