loanamount=0;



function exitapp ()

	{

	var exitapplication= confirm("Exit the calculator?");

 	if (exitapplication == true)

 		{

  		window.status="Closing"

		parent.window.close();

 		}

	}



function checknum (num)

	{

	validate (num);

	num.value=parseInt(num.value, 10);

	}



function validate(num) {

var valid = "0123456789"

var ok = "yes";

var temp;

for (var i=0; i<num.value.length; i++) {

	tempchar = "" + num.value.substring(i, i+1);

	if (valid.indexOf(tempchar) == "-1") ok = "no";

	}

if (ok == "no") {

	alert("This is not a valid entry.\nPlease enter only whole numbers.");

	num.value=0;

	}

if (num.value == "") num.value=num.defaultValue;

}



function calcrefund (loanamount){



	if (loanamount <= 175000) {

		document.refundform.refund.value =  parseInt(loanamount*0.006*0.24,10); 
		document.refundform.refund2.value =  parseInt(loanamount*0.006*0.1,10);

		document.refundform.loanamount2.value = loanamount;

		}

	if (loanamount > 175000 && loanamount <= 299999){

		document.refundform.refund.value =  parseInt(loanamount*0.006*0.32,10); 
		document.refundform.refund2.value =  parseInt(loanamount*0.006*0.1,10);

		document.refundform.loanamount2.value = loanamount;

		}

	if (loanamount > 299999) {  

		document.refundform.refund.value =  parseInt(loanamount*0.006*0.4,10);
		document.refundform.refund2.value =  parseInt(loanamount*0.006*0.1,10);

		document.refundform.loanamount2.value = loanamount;

		}

}