var amount = 200000;


function fp_calc_less()
{
	if(amount >20600)
	amount -= 20000;
	
	fp_recalc();
	
	return false;
}



function fp_calc_more()
{
	
	amount += 20000;
		
	fp_recalc();
	
	return false;
}


function formatCurrency(num) {
num = num.toString().replace(/\$|\,/g,'');
if(isNaN(num))
num = "0";
sign = (num == (num = Math.abs(num)));
num = Math.floor(num*100+0.50000000001);
cents = num%100;
num = Math.floor(num/100).toString();
if(cents<10)
cents = "0" + cents;
for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
num = num.substring(0,num.length-(4*i+3))+','+
num.substring(num.length-(4*i+3));
return (((sign)?'':'-') + '$' + num + '.' + cents);
}


function fp_recalc()
{
	
	var displayAmount = formatCurrency(amount);
	
	 $('#fp_calc_input').val(displayAmount);
	
	var newAmount = (amount-599)*0.03;
	
	var savings = formatCurrency(newAmount);
	
	$('#fp_calc_output').html(savings);
}