//Calculator Form
<!--
function ClearForm(inputform)
{
	inputform.deposit.value = '';
	inputform.period.selectedIndex = 0;
	document.getElementById('interestrate').innerHTML = '0.0000';
	document.getElementById('cinterest').innerHTML = 'S$0.00.';
	document.getElementById('sinterest').innerHTML = '';
	return false;
}

function Format_result(num,dec) {
	var snum=num.toString();
	var dig="00000000";
	var sep=snum.indexOf(".");
	if (sep == -1)
	{
		num="S$"+snum+"."+dig.substring(0,dec)+"."
	}
	else
	{
		var beg=snum.substring(0,snum.indexOf("."));
		var dig_len=dec-(snum.length-sep);
		dig=dig.substring(0,dig_len+1);
		num="S$"+snum+dig+".";
	}
	return num;
}

function Check_fields(inputform)
{
	if (inputform.deposit.value < 500)
	{
		alert ("Your Deposit Amount should be between S$500 and S$50000.");
		inputform.deposit.value = '';
		inputform.deposit.focus();
		inputform.deposit.select();
		return false;
	}
	
	return true;
}

function Cal_interest(inputform)
{
	// make sure that this is numeric
	if (!CHK_num(inputform.deposit))
	{
		inputform.deposit.value = '';
		return false;
	}

	// make sure that Deposit Amount is between S$500 and S$50000.
	if (inputform.deposit.value > 50000)
	{
		alert ("Your Deposit Amount should be between S$500 and S$50000.");
		inputform.deposit.value = '';
		inputform.deposit.focus();
		return false;
	}

	switch(inputform.period.value)
	{
		case '3':
			document.getElementById('interestrate').innerHTML = tier1_Mth3
			break    
		case '5':
			document.getElementById('interestrate').innerHTML = tier1_Mth5
			break    
		case '6':
			document.getElementById('interestrate').innerHTML = tier1_Mth6
			break
		case '8':
			document.getElementById('interestrate').innerHTML = tier1_Mth8
			break
		case '9':
			document.getElementById('interestrate').innerHTML = tier1_Mth9
			break
		case '10':
			document.getElementById('interestrate').innerHTML = tier1_Mth10
			break
		case '12':
			document.getElementById('interestrate').innerHTML = tier1_Mth12
			break
		case '15':
			document.getElementById('interestrate').innerHTML = tier1_Mth15
			break
		case '18':
			document.getElementById('interestrate').innerHTML = tier1_Mth18
			break
		case '24':
			document.getElementById('interestrate').innerHTML = tier1_Mth24
			break
		case '36':
			document.getElementById('interestrate').innerHTML = tier1_Mth36
			break
		default:
			document.getElementById('interestrate').innerHTML = '0.0000'
	}

	if ((inputform.deposit.value == '') || (inputform.period.selectedIndex == 0))
	{
		document.getElementById('cinterest').innerHTML = 'S$0.00.';
		document.getElementById('sinterest_ie').innerHTML = '';
		document.getElementById('sinterest').innerHTML = '';
	}
	else
	{
		document.getElementById('cinterest').innerHTML = Format_result((Math.round(inputform.deposit.value * inputform.period.value * 	document.getElementById('interestrate').innerHTML / 12) /100 ), 2);

		if (inputform.period.value < 12)
		{
			document.getElementById('sinterest_ie').innerHTML = '';
			document.getElementById('sinterest').innerHTML = '';
		}
		else
		{

			var browser=navigator.appName;
			if (browser=="Microsoft Internet Explorer")
			{
				document.getElementById('sinterest').innerHTML = '';
				document.getElementById('sinterest_ie').innerHTML = 'For those who are entitled to senior citizen rate<sup>#</sup>, your interest on maturity is <b>' + Format_result(((Math.round(inputform.deposit.value * inputform.period.value * ((document.getElementById('interestrate').innerHTML/12) + (0.125/12))))/100), 2) + '</b>';
			}
			else
			{
				document.getElementById('sinterest_ie').innerHTML = '';
				document.getElementById('sinterest').innerHTML = 'For those who are entitled to senior citizen rate<sup>#</sup>, your interest on maturity is <b>' + Format_result(((Math.round(inputform.deposit.value * inputform.period.value * ((document.getElementById('interestrate').innerHTML/12) + (0.125/12))))/100), 2) + '</b>';
			}
		}
	}
}

//-->