function Loan() {
	var housePrice;
	var IR;
	var dpayment;
	var years;
	var monthPay;
	var month;
	switch(document.calcform.startm.value) {
		case "january":
			document.calcform.startm.value="0";
			parseInt(document.calcform.startm.value)
			break;
		case "february":
			document.calcform.startm.value="1";
			parseInt(document.calcform.startm.value)
			break;
		case "march":
			document.calcform.startm.value="2";
			parseInt(document.calcform.startm.value);
			break;
		case "april":
			document.calcform.startm.value="3";
			parseInt(document.calcform.startm.value);
			break;
		case "may":
			document.calcform.startm.value="4";
			parseInt(document.calcform.startm.value);
			break;
		case "june":
			document.calcform.startm.value="5";
			parseInt(document.calcform.startm.value);
			break;
		case "july":
			document.calcform.startm.value="6";
			parseInt(document.calcform.startm.value);
			break;
		case "august":
			document.calcform.startm.value="7";
			parseInt(document.calcform.startm.value);
			break;
		case "september":
			document.calcform.startm.value="8";
			parseInt(document.calcform.startm.value);
			break;
		case "october":
			document.calcform.startm.value="9";
			parseInt(document.calcform.startm.value);
			break;
		case "november":
			document.calcform.startm.value="10";
			parseInt(document.calcform.startm.value);
			break;
		case "december":
			document.calcform.startm.value="11";
			parseInt(document.calcform.startm.value);
			break;
	default:
	document.calcform.startm.value="0";
	parseInt(document.calcform.startm.value);
	break;
	}
	housePrice = parseFloat(document.calcform.price.value);
	dpayment = parseFloat(document.calcform.dpayment.value);
	IR = parseFloat(document.calcform.interest.value);
	years = parseFloat(document.calcform.time.value);
	housePrice = housePrice - dpayment;
	month = years * 12;
	interestRate = IR / 12;
	negmonth =- 1 * month;
	var bottom = 1 - (Math.pow(interestRate+1,negmonth));
	var top = interestRate;
	var mid = top / bottom;
	var dec;
	document.calcform.monthPay.value = (housePrice * mid);
	monthPay = document.calcform.monthPay.value;
	document.calcform.monthPay.value = eval(monthPay);
	housePrice = housePrice - document.calcform.monthPay.value;
	document.calcform.month.value = month;
	}
	function convert() {
	var startmonth = new String();
	startmonth = document.calcform.startm.value;
	document.calcform.startm.value = startmonth.toLowerCase();
	}
	function changenum() {
	document.calcform.startyear.value=parseInt(document.calcform.startyear.value);
	}
	var d = new Date;
	function getFieldValue (strFieldName) {
	var strFieldValue;
	var objRegExp = new RegExp(strFieldName + "=([^&]+)","gi");
	if (objRegExp.test(location.search))
	strFieldValue = unescape(RegExp.$1);
	else strFieldValue="";
	return strFieldValue;
	}
	function Currency(money1) {
	var money = new String(money1);
	var decimal = money.indexOf(".",[0]);
	var money = money.substring(0,decimal+3);
	var money1 = parseFloat(money);
	return money;
	}
	var startmonth;
	startmonth = getFieldValue("startm");
	var monthofpayment = new String;
	month = getFieldValue("month");
	monthPay = getFieldValue("monthPay");
	Houseprice = getFieldValue("price");
	Ir = getFieldValue("interest");
	Ir = Ir/12;
	year = getFieldValue("startyear")
	function check() {
	var dPayment = document.calcform.dpayment.value;
	var price = document.calcform.price.value;
	if(price.indexOf(",") >= 0) {
	alert("Please do not put commas in the Price number")
	   }
	}
	function check1() {
	var dPayment = document.calcform.dpayment.value;
	if(dPayment.indexOf(",") >= 0) {
	alert("Please do not put commas in the Down Payment number");
	   }
	}