function checkform()
{
	var myForm = document.donate;
	
	if (myForm.chargetotal.value == '')
	{
		alert('Please enter a donation amount');
		myForm.chargetotal.focus();
		return false;
	}
	
	else if (myForm.email.value =='')
	{ 
		alert('Please enter an email address');
		return false;
	}

	else
	{
		return true;
	}
}


function checkValidEmail()
{
	var myForm = document.donate;
	
	if (myForm.email.value == myForm.email_2.value)
	{
		return;
	}
	
	else 
	{
		alert("OOPS! The email addresses you entered do not match. Please retype.");
		myForm.email_1.focus();
		myForm.email_1.select();
	}
}






function startCalc(){
  interval = setInterval("calc()",1);
}


function calc(){

  var one = document.tickets.pSponsor;
  var two = document.tickets.dSponsor;
  var three = document.tickets.dBenefactor;
  
  var oneTotal = document.tickets.pSponsorVal.value;
  var twoTotal = document.tickets.dSponsorVal.value;
  var threeTotal = document.tickets.dBenefactorVal.value;
  
  
  if (one.checked == true) {
  document.tickets.pSponsorVal.value = 20000.00;
  }
  else {
  document.tickets.pSponsorVal.value = 0.00;
 }
 
   if (two.checked == true) {
  document.tickets.dSponsorVal.value = 15000.00;
  }
  else {
  document.tickets.dSponsorVal.value = 0.00;
 }
 
   if (three.checked == true) {
  document.tickets.dBenefactorVal.value = 10000.00;
  }
  else {
  document.tickets.dBenefactorVal.value = 0.00;
 }

 
 var qty1 = document.tickets.benefactor.value;
 var qty2 = document.tickets.guarantor.value;
 var qty3 = document.tickets.hPartner.value;
 var qty4 = document.tickets.patron.value;
 var qty5 = document.tickets.individual.value;
 var qty6 = document.tickets.unableVal.value;
 
   
  document.tickets.chargetotal.value = (oneTotal * 1) + (twoTotal * 1) + (threeTotal * 1) + (qty1 * 5000.00) + (qty2 * 2500.00) + (qty3 * 1500.00) +
  (qty4 * 300.00) + (qty5 * 200.00) + (qty6 * 1);
}


function stopCalc(){
  clearInterval(interval);
}