jQuery("#mortgageCalc").click(function(){
	var L,P,n,c,dp;
	n = parseInt(jQuery("#mcTerm").val()) * 12;
	c = parseFloat(jQuery("#mcRate").val())/1200;
	L = parseInt(jQuery("#mcPrice").val()) - parseFloat(jQuery("#mcDown").val()); 
	P = (L*(c*Math.pow(1+c,n)))/(Math.pow(1+c,n)-1);
	if(!isNaN(P)) {
		jQuery("#mcPayment").val(P.toFixed(2));
	} else {
		jQuery("#mcPayment").val('There was an error');
	}
		return false;
});