// JavaScript Document

$(function(){
	$('#calculate').click(function(){
		var results = $('#income').val();
		var outgoings = $('#outgoings').val();
		results = cleanString(results)*1;
		outgoings = cleanString(outgoings)*1*12;
		$('#results').html('<label>Estimated mortgage</label> &pound;'+addCommas((results-outgoings)*3.5));															 
	});
});

function addCommas(nStr)
{
	nStr += '';
	x = nStr.split('.');
	x1 = x[0];
	x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1' + ',' + '$2');
	}
	return x1 + x2;
}

function cleanString(str) {
	return str.replace(/\D/g,'');
}