toFixed(2) vs Math.round

[pmactdot]

Hi,

I'm trying to get the below ShowVal() case study to dispaly/return a value to 2 decimals. Where/how would I use toFixed(2) instead or Math.round?

function ShowVal() {
	var I=eval(document.mortgage_calculator.interest_rate.value);
	var N=eval(document.mortgage_calculator.total_num_months.value);
	var S=eval(document.mortgage_calculator.loan_amount.value);
	Document.mortgage_calculator.monthly_pymt.value=Math.round(Monthly(I,N,S)*100)/100;
	document.mortgage_calculator.total_pymts.value=Math.round(document.mortgage_calculator.monthly_pymt.value*N*100)/100;
}

Cheers!

[mrhoo]

toFixed returns a string, Math.round returns a number.

[CODE=javascript]

var n=1/3;
alert('n=1/3\nn.toFixed(2) = '+n.toFixed(2)+
'\nMath.round(n )= '+Math.round(n) );
[/CODE]