function cal(y,m)
{
	var uri = top.location.href;
	var f = (uri.indexOf("calendar")>0) ? "full" : "mini";
	
	var url = "/services/calendar.php";
	var pars = "format="+f+"&year="+y+"&month="+m;

	var myAjax = new Ajax.Updater(
		$('calendar'),
		url,
		{
			method: 'post',
			parameters: pars,
			onFailure: onError
		});
}  

function onError()
{
	alert ("Error: " + result.responseText);
}