<!-- Begin JS

function checkformAPR(form){
if ((form.apr.value == "") || isNaN(form.apr.value))
	alert('Please enter a valid APR value');
else if ((form.period.value == "") || isNaN(form.period.value))
	alert('Please enter a valid APR period value');
else
	return true;
return false;
}

function checkformAPY(form){
if ((form.apy.value == "") || isNaN(form.apy.value))
	alert('Please enter a valid APY value');
else if ((form.period.value == "") || isNaN(form.period.value))
	alert('Please enter a valid APY period value');
else
	return true;
return false;
}


function calculateAPR(form) {
form.apr.value = "";
pageTracker._trackPageview("/goal/click/calc/APYtoAPR");
pageTracker._trackPageview("/goal/click/calc/APYAPRCalculator");


if (checkformAPY(form)){
	x = (form.apy.value / 100)  + 1;
	y = 1 / form.period.value;
	x = Math.pow(x,y);
	x = (x-1) * form.period.value;
	form.apr.value = Math.round(x * 10000)/100;

	}
}

function calculateAPY(form) {
form.apy.value = "";
pageTracker._trackPageview("/goal/click/calc/APRtoAPY");
pageTracker._trackPageview("/goal/click/calc/APYAPRCalculator");

if (checkformAPR(form)){
	x = 1 + (form.apr.value / 100 / form.period.value);
	y = Math.pow (x, form.period.value);
	form.apy.value = (Math.round((y - 1) * 10000))/100;
	}
}
// End JS-->