function computeField()
{
	
var a;
a=document.forms.form1;

	a.lender_premium.value= " ";
	a.owner_premium.value= " ";
	a.reissue.value= " ";

loan=a.loan_amount.value;
sp=a.sales_price.value;

if ( parseFloat(sp) < parseFloat(loan))
{
	alert("Sales Price should be greater than Loan Amount");
	return false;
}


	for (var i = 0; i < sp.length; i++) {
		var c = sp.charAt(i);
		if (!(((c >= "0") && (c <= "9")) || c==".")) {
		alert("Enter Numeric value in Sales Price");
		return false;
		}
	}

	for (var i = 0; i < loan.length; i++) {
		var c = loan.charAt(i);
		if (!(((c >= "0") && (c <= "9")) || c==".")) {
		alert("Enter Numeric value in Loan Amount");
		return false;
		}
	}
	if (sp.length==0)
	{
	a.sales_price.value=0;
	}

	if (loan.length==0)
	{
	a.loan_amount.value=0;
	}

if (sp < 100000)
	{
		sim = 4.68 * parseInt(sp/1000) + 50;
	}
	
	
if (sp >= 100000 && sp < 500000)
	{
	var cfo;
		cfo = 468;
		pluso = 4.08 * parseInt(((sp-100000)/1000));

	sim = cfo + pluso + 50;
	}

if (sp >= 500000 && sp < 50000000)
	{
	var cfo;
		cfo = 2100;
		pluso = 3.60 * parseInt(((sp-500000)/1000));

	sim = cfo + pluso + 50;
	}


if (loan < 100000)
	{
		lender = 3.48 * parseInt(loan/1000);
	}
	
	
if (loan >= 100000 && loan < 500000)
	{
	var cfo;
		cfo = 348;
		pluso = 2.88 * parseInt(((loan-100000)/1000));

	lender = cfo + pluso;
	}

if (loan >= 500000 && loan < 5000000)
	{
	var cfo;
		cfo = 1500;
		pluso = 2.40 * parseInt(((loan-500000)/1000));

	lender = cfo + pluso ;
	}


	a.lender_premium.value= Math.round(lender * 100 )/100;
	a.owner_premium.value= Math.round((sim - lender)*100)/100;
	a.reissue.value= Math.round((lender * 0.70) * 100)/ 100;
	
if (loan > 5000000000 )
	{
	alert("Amount should be less than 5000000000");
	a.loan_amount.focus;
	}


//window.open("online-GFE-calculator.html");

}