first_selected = null;
last_selected = null;
last_cday = null;
function selectDay(cday, day) {
	if (last_selected != null && last_cday != null) {
		var last_event=document.getElementById(last_selected);
		last_event.className = last_event.oldClassName;
		last_cday.className = last_cday.oldClassName;
	};
	var i = 0;
	last_cday = cday.parentNode;
	last_cday.oldClassName = last_cday.className;
	last_cday.className = 'selected_number';
	var event=document.getElementById(day);
	event.oldClassName = event.className;
	event.className = 'selected_events';
	last_selected = day;
}

function init_calendar() {
	window.location.hash = first_selected;
	selectDay(document.getElementById('init_cday'), first_selected);
}