function frmAPR_onsubmit()
	{
		var returnValue = true;
		
 		if (!Validate())
			{
			returnValue = false;
			}
			
		return returnValue;
			
	}
	
	function Validate()
	{
		var Premium = frmAPR.txtAnnPrem.value;
		var NumPay = frmAPR.txtNumPayments.value;
		var ModalPay = frmAPR.txtModalPayment.value;
		
		if (Premium == "" || NumPay == "" || ModalPay == "")
		{
			alert("Please complete all form entries");
			if (Premium == "")
				{
					frmAPR.txtAnnPrem.focus();
					return false;
				}
				
			else if (NumPay == "")
				{
					frmAPR.txtNumPayments.focus();
					return false;
				}
				
			else if (ModalPay == "")
				{
					frmAPR.txtModalPayment.focus();
					return false;					
				}
		}
		
		if (isNaN(Premium)==true)
		{
			alert ("Please enter a valid premium");
			frmAPR.txtAnnPrem.focus();
			return false;			
		}

		if (isNaN(NumPay)==true || (NumPay != 2 && NumPay !=4 && NumPay != 12))
		{
			alert ("Please enter a valid number of payments");
			frmAPR.txtNumPayments.focus();
			return false;						
		}
		
		if (isNaN(ModalPay)==true)
		{
			alert ("Please enter a valid modal of payment");
			frmAPR.txtModalPayment.focus();
			return false;						
		}
		if ((ModalPay*NumPay) <= Premium)
		{
			alert ("Please enter a valid modal of payment");
			frmAPR.txtModalPayment.focus();
			return false;						
		}
		
		return true;
	}
		
	function Clear_onClick()
	{
		
		frmAPR.txtAnnPrem.value="";
		frmAPR.txtNumPayments.value="";
		frmAPR.txtModalPayment.value="";
		frmAPR.txtAPR.value="";
	}