function toCentsParts(value) {
	tValue = Math.abs(value);
	billions = millions = thousands = 0;
	if (tValue >= 10000000) {
		billions = Math.floor(tValue / 10000000);
		tValue = tValue - (billions * 10000000);
	}
	if (tValue >= 10000) {
		millions = Math.floor(tValue / 10000);
		tValue = tValue - (millions * 10000);
	}
	if (tValue >= 10) {
		thousands = Math.floor(tValue / 10);
		tValue = tValue - (thousands * 10);
	}
	cents = Math.round(tValue * 100);
	
	return [billions, millions, thousands, cents];
}

function arabicOnesSingle(value) {
	var cent = value % 100;
	return cent < 2 || cent > 10;
}
function getUnitNames(values) {
	var ar = false;
	return [
		values[0] === 1 || ar && arabicOnesSingle(values[0]) ? 'billion'  : 'billions',
		values[1] === 1 || ar && arabicOnesSingle(values[1]) ? 'million'  : 'millions',
		values[2] === 1 || ar && arabicOnesSingle(values[2]) ? 'thousand' : (ar && values[2] === 2 ? 'two thousands' : 'thousands'),
		values[3] === 1 || ar && arabicOnesSingle(values[3]) ? 'cent'     : 'cents',
	];
}

function displayCurrencyInWords(value) {
	var ar = false;
	var text = '';
	var groupConnector = ar ? ' و ' : ', ';
	[billions, millions, thousands, cents] = toCentsParts(value);
	[unitBillions, unitMillions, unitThousands, unitCents] = getUnitNames([billions, millions, thousands, cents]);
	if (billions > 0) text = ((billions === 1 ? '' : billions + ' ') + unitBillions);
	if (millions > 0) text += (text ? groupConnector : '') + ((millions === 1 ? '' : millions + ' ') + unitMillions);
	if (thousands > 0) text += (text ? groupConnector : '') + ((thousands === 1 || (ar && thousands === 2) ? '' : thousands + ' ') + unitThousands);
	if (cents > 0) text += (text ? groupConnector : '') + ((cents === 1 ? '' : cents + ' ') + unitCents);
		
	return text;
}

function displayCurrency(x) {
	var thousandSep = ' ';
	x = x.toFixed(2).toString().replace('.', ',');
    var pattern = /(-?\d+)(\d{3})/;
    while (pattern.test(x))
        x = x.replace(pattern, "$1" + thousandSep + "$2");
    return x + ' DA';
}

function redirect(url) {
	window.location = url;
}