// JavaScript Document

<!--
function numbersonly() 
{
	if (event.keyCode < 48 || event.keyCode > 57)
		return false;
}

function numbersandpointonly()
{
	if (event.keyCode == 46) 
		return true;

	if (event.keyCode < 48 || event.keyCode > 57)
		return false;
}

function parseInteger(val)
{
	var i;
	do
	{
		i = val.indexOf(',');
		val = val.substring(0, i) + val.substring(i+1);
	} while (val.indexOf(',') != -1);
	return parseInt(val);
}

function calculate()
{
	var calcs = 12;
	var loan = 0;
	var rate = 0;
	var intloan = "0";
	var intrate = "0";
	var term = "0";
	var intterm = "0";
	var monthlyterm;
	var rate100 = "0";
	var monthlyrepayments = "0";
	var mortgagetype = 1;
	
	loan = document.mortgageform.loanvalue.value;
	rate = document.mortgageform.interest.value + '.'+ document.mortgageform.interest2.value;
	
	
	mortgagetype = document.mortgageform.mortgagetype.selectedIndex;
	
	if (!parseInteger(loan) > 0)
	{
		alert("Please enter a value for the loan, no spaces or commas");
		document.mortgageform.loanvalue.focus();
		return false;
	}

	if (!parseInteger(rate) > 0|isNaN(rate))
	{
		alert("Please enter an interest rate here");
		document.mortgageform.interest.focus();
		return false;
	}

	intloan = parseInteger(loan);
	
	if (!intloan > 0)
	{
		alert("Please enter a number here");
		document.mortgageform.loanvalue.focus();
		return false;
	}
	
	if (!intrate > 0)
	{
		alert("Please enter a number here");
		document.mortgageform.interest.focus();
		return false;
	}
	
	term = document.mortgageform.mortgage[document.mortgageform.mortgage.selectedIndex].value;

	intterm = parseInt(term);
	
	rate100 = (intrate / 100);
	
	monthlyrepayments = ((intloan * rate) / (1200));
	
	monthlyrepayments = (monthlyrepayments * 100);
	monthlyrepayments = Math.round(monthlyrepayments);
	monthlyrepayments = (monthlyrepayments / 100);
	monthlyrepayments = padZero(monthlyrepayments);	
	
	if (mortgagetype == 0)
	{
		document.mortgageform.CRGanswer.value = monthlyrepayments;
		return false;
	}
		
	if (mortgagetype == 1)
	{
		var topline = (intloan * rate * 12);
		var mid = Math.pow((1+(rate/1200)), (-term * 12));
		mid = (100 * 12 * (1 - mid));
		var answer = ((topline / mid) / 12);
		answer = (answer * 100);
		answer = Math.round(answer);
		answer = (answer / 100);
		answer = padZero(answer);
		document.mortgageform.CRGanswer.value = answer;
	}
	
	return false;			
}
	
function range()
{
	document.calculationform.rangeres.value = "";

	var income1 = 0;
	var income2 = "";
	var newincome1 = 0;
	var newincome2 = 0;
	var bonus1 = "";
	var bonus2 = "";
	var newbonus1 = 0;
	var newbonus2 = 0;
	var inc9 = 0;
	var rgeres1 = 0;
	var rgeres2 = 0;
	var intres1 = 0;
	var intres2 = 0;
	
	income1 = document.calculationform.income1.value;
	income2 = document.calculationform.income2.value;
	bonus1 = document.calculationform.commission1.value;
	bonus2 = document.calculationform.commission2.value;
	
	if (bonus1.length == 0)
		bonus1 = "0";
	
	if (bonus2.length == 0)
		bonus2 = "0";
	
	if (income2.length == 0)
		income2 = "0";
	
	newincome1 = parseInteger(income1);
	newincome2 = parseInteger(income2);
	newbonus1 = parseInteger(bonus1);
	newbonus2 = parseInteger(bonus2);
	
	if (!newincome1 > 0)
	{
		alert("Please enter a number here");
		document.calculationform.income1.focus();
		return false;
	}

	if (income2.length > 1 && !newincome2 > 0)
	{
		alert("Please enter a number here");
		document.calculationform.income2.focus();
		return false;
	}
	else
	{
		if(income2.length > 1 && newincome2 > 0 && newincome2 > newincome1)
		{
			newincome1 = parseInt(income2);
			newincome2 = parseInt(income1);
		}
	}

	if (bonus1.length > 1 && !newbonus1 > 0)
	{
		alert("Please enter a number here");
		document.calculationform.commission1.focus();
		return false;
	}
	
	if (bonus2.length > 1 && !newbonus2 > 0)

	{
		alert("Please enter a number here");
		document.calculationform.commission2.focus();
		return false;
	}
	
	if (newbonus1 >= 1)
		newbonus1 = (newbonus1 * 0.5);
	else
		newbonus1 == 0;
	
	if (newbonus2 >= 1)
		newbonus2 = (newbonus2 * 0.5);
	else
		newbonus2 == 0;

	newincome1 = (newincome1 + newbonus1);
	rgeres1 = newincome1;
	newincome2 = (newincome2 + newbonus2);
	rgeres2 = newincome2;
	
	var res1 = (newincome1 + newincome2);
	var res2;
	res1 = (res1 * 2.5);
	res2 = (newincome1 * 3.25);
	
	intres1 = ((rgeres1 * 4) + rgeres2);
	intres2 = ((rgeres1 + rgeres2) * 2.75);
	
	if (res1 == res2)
		document.calculationform.rangeres.value = padZero(res1);
	else if(res1 > res2)
		document.calculationform.rangeres.value = padZero(res1);
	else
		document.calculationform.rangeres.value = padZero(res2);
	
	if (intres1 == intres2)
		document.calculationform.range2res.value = padZero(intres1);
	else if(intres1 > intres2)
		document.calculationform.range2res.value = padZero(intres1);
	else
		document.calculationform.range2res.value = padZero(intres2);
	
	return false;
}
	
function padZero(n)
{
	var a;
	n = n.toString();
	if (n.indexOf(".")!=-1)
	{
		a=n.split(".");
		n=(a[1].length==1)?n+"0":n;
	}
	return n;
}
	
//-->