function chkvalues() 
{
	var formOK = 1;

	var person = document.getElementById('person');
	if (formOK && person.value.length == 0) { alert('Please enter your name.'); person.focus(); formOK = 0; }

	var numbers = document.getElementById('numbers');
	if (formOK && numbers.value.length == 0) { alert('Please enter a phone number so we can contact you.'); numbers.focus(); formOK = 0; }

	var besttime = document.getElementById('besttime');
	if (formOK && besttime.value.length == 0) { alert('Please let us know the best time to contact you.'); besttime.focus(); formOK = 0; }
	
	if (formOK) document.getElementById('f1').submit();
}

function movemonths(m) 
{
	document.getElementById('addmonths').value = 1 * document.getElementById('addmonths').value + 1 * m;
	document.getElementById('f1').submit();
}
function btc()
{ //Back to calendar
	document.getElementById('f1').submit();
}