function nextmonth()
{
	cmonth=Number(document.webervations_calendar.month_num.value);
	nmonth=cmonth+1;
	if (nmonth == 13) {nmonth=1;}
	document.webervations_calendar.month_num.value = nmonth;
	document.dcalendar.src='/calendars/calendar_9432_avail'+nmonth+'.gif';
}

function lastmonth()
{
	cmonth=Number(document.webervations_calendar.month_num.value);
	nmonth=cmonth-1;
	if (nmonth == 0) {nmonth=12;}
	document.webervations_calendar.month_num.value = nmonth;
	document.dcalendar.src='/calendars/calendar_9432_avail'+nmonth+'.gif';
}