// Калькулятор
function calc () 
{
	var kurs1 = document.getElementById('kurs1').value;
	var kurs2 = document.getElementById('kurs2').value;
	var radios = document.getElementsByTagName('input');
	var summ = document.getElementById('summ').value;
	var commis = 10; // Комиссия
	var itog = document.getElementById('itog');
	var itogo;
	var type;
	var usd;
	var eur;	
	summ = summ.replace(',', ".")

	for (var i = 0; i < radios.length; i++) {
		if (radios[i].type === 'radio' && radios[i].checked && radios[i].name === 'type') {
			//
			type = radios[i].value;
		}
	}

	switch (type)
	{
		case 'po':
			if (summ > 3000) {
				usd = parseFloat(document.getElementById('pousdb').innerHTML.replace(',', "."));
				eur = parseFloat(document.getElementById('poeurb').innerHTML.replace(',', "."));
			} 
			else
			{
				usd = parseFloat(document.getElementById('pousd').innerHTML.replace(',', "."));
				eur = parseFloat(document.getElementById('poeur').innerHTML.replace(',', "."));
			}
		break;
		case 'pr':
			if (summ > 3000) {
				usd = parseFloat(document.getElementById('prusdb').innerHTML.replace(',', "."));
				eur = parseFloat(document.getElementById('preurb').innerHTML.replace(',', "."));
			} 
			else
			{
				usd = parseFloat(document.getElementById('prusd').innerHTML.replace(',', "."));
				eur = parseFloat(document.getElementById('preur').innerHTML.replace(',', "."));
			}
		break;
	}


	if (kurs1 == 'USD' && kurs2 == 'RUR')
	{
		itogo = (summ * usd + commis).toFixed(2)
	}
	else if (kurs1 == 'USD' && kurs2 == 'EUR')
	{
		itogo = ((summ * usd + commis) / eur).toFixed(2)
	}
	else if (kurs1 == 'EUR' && kurs2 == 'RUR')
	{
		itogo = (summ * eur + commis).toFixed(2)
	}
	else if (kurs1 == 'EUR' && kurs2 == 'EUR')
	{
		itogo = ((summ * eur + commis) / eur).toFixed(2)
	}

	
	if (itogo != 'NaN' && summ != '')
		itog.innerHTML = itogo;
	else
		itog.innerHTML = '0,00';

}