jQuery("input[value='Compute']").click(function() {
	var j = jQuery;
	var loanTerm = parseFloat(j("input[name='payments']").val());
	var interestRate = parseFloat(j("input[name='interest']").val());
	var principalAmount = parseFloat(j("input[name='loan']").val());
	
	var i = interestRate/100.0/12.0;
	var tau = 1.0 + i;
	var tauToTheN = Math.pow(tau, loanTerm);
	var magicNumber = tauToTheN * i / (tauToTheN - 1.0);
	if(isNaN(principalAmount * magicNumber)) {
		alert("Please enter numbers only is the is all the required fields");
	} else {
		j("input[name='payment']").val(principalAmount * magicNumber);
	}


	return false;
});