function doLoan(language)
{
	var length = "";
	var ammount = "";
	var rate = "";

	var monthly = 0.0;
	var monthlyRate = 0.0;

	if (1 == 1)
	{
		replaceComma(document.loanForm.ammount);
		replaceComma(document.loanForm.rate);

		ammount = document.loanForm.ammount.value;
		rate = document.loanForm.rate.value;
		length = document.loanForm.length.value;


		if (ammount * 1 != ammount)
		{
			return true;
		}
		else if (rate * 1 != rate)
		{
			return true;
		}
		else if (length == 0)
		{
			return true;
		}
		else if (ammount > 0 && rate > 0)
		{
			length = length * 12; //transform to months
			rate = rate / 100.0;
			monthlyRate = rate / 12.0;
			monthly = ammount * monthlyRate / (1.0 - calculate(monthlyRate, -length));

			document.loanForm.monthly.value = formatNumber(monthly,2,true,false);
			total = formatNumber(monthly,2,true,false) * length;
			document.loanForm.total.value = formatNumber(total,2,true,false);
		}
	}
	return (true);
}

function replaceComma(obj)
{
	if (obj.value.indexOf(',') != -1)
	{
		obj.value = obj.value.substring(0,obj.value.indexOf(',') ) + '.' + obj.value.substring(obj.value.indexOf(',') + 1);
	}
}

function calculate(a, n)
{
  var i;
  var sum, pow, term, cof;

  if(n < 0)
    return 1.0 / calculate(a, -n);

  sum = 1.0;
  pow = n;
  term = 1;
  cof = 1.0
  for(i = 1; i < 10; i++) {
    cof = cof * pow / i;
    pow = pow - 1.0;
    term = term * a;
    sum = sum + cof * term;
  }

  return sum;
}


 function formatNumber(num, decimalNum, bolLeadingZero, bolParens)
   /* IN - num:            the number to be formatted
           decimalNum:     the number of decimals after the digit
           bolLeadingZero: true / false to use leading zero
           bolParens:      true / false to use parenthesis for - num

      RETVAL - formatted number
   */
   {
       var tmpNum = num;

       // Return the right number of decimal places
       tmpNum *= Math.pow(10,decimalNum);
       tmpNum = Math.floor(tmpNum);
       tmpNum /= Math.pow(10,decimalNum);

       var tmpStr = new String(tmpNum);

       // See if we need to hack off a leading zero or not
       if (!bolLeadingZero && num < 1 && num > -1 && num !=0)
           if (num > 0)
               tmpStr = tmpStr.substring(1,tmpStr.length);
           else
               // Take out the minus sign out (start at 2)
               tmpStr = "-" + tmpStr.substring(2,tmpStr.length);


       // See if we need to put parenthesis around the number
       if (bolParens && num < 0)
           tmpStr = "(" + tmpStr.substring(1,tmpStr.length) + ")";


       return tmpStr;
   }