function spoctivse() {
	
	document.formular.elements[3].value = document.formular.elements[1].value * document.formular.elements[2].value;
	document.formular.elements[7].value = document.formular.elements[5].value * document.formular.elements[6].value;
	document.formular.elements[11].value = document.formular.elements[9].value * document.formular.elements[10].value;
	document.formular.elements[15].value = document.formular.elements[13].value * document.formular.elements[14].value;
	document.formular.elements[19].value = document.formular.elements[17].value * document.formular.elements[18].value;
	document.formular.elements[23].value = document.formular.elements[21].value * document.formular.elements[22].value;
	document.formular.elements[27].value = document.formular.elements[25].value * document.formular.elements[26].value;
	document.formular.elements[31].value = document.formular.elements[29].value * document.formular.elements[30].value;
	document.formular.elements[35].value = document.formular.elements[33].value * document.formular.elements[34].value;

	document.formular.cena.value = eval(document.formular.cenavse1.value) + eval(document.formular.cenavse2.value) + eval(document.formular.cenavse3.value) + eval(document.formular.cenavse4.value) + eval(document.formular.cenavse5.value) + eval(document.formular.cenavse6.value) + eval(document.formular.cenavse7.value) + eval(document.formular.cenavse8.value) + eval(document.formular.cenavse9.value);

	if (document.formular.pocet1.value == "") {document.formular.pocet1.value = "0"}
	if (document.formular.pocet2.value == "") {document.formular.pocet2.value = "0"}
	if (document.formular.pocet3.value == "") {document.formular.pocet3.value = "0"}
	if (document.formular.pocet4.value == "") {document.formular.pocet4.value = "0"}
	if (document.formular.pocet5.value == "") {document.formular.pocet5.value = "0"}
	if (document.formular.pocet6.value == "") {document.formular.pocet6.value = "0"}
	if (document.formular.pocet7.value == "") {document.formular.pocet7.value = "0"}
	if (document.formular.pocet8.value == "") {document.formular.pocet8.value = "0"}
	if (document.formular.pocet9.value == "") {document.formular.pocet9.value = "0"}

	document.formular.kusy.value = eval(document.formular.pocet1.value) + eval(document.formular.pocet2.value) + eval(document.formular.pocet3.value) + eval(document.formular.pocet4.value) + eval(document.formular.pocet5.value) + eval(document.formular.pocet6.value) + eval(document.formular.pocet7.value) + eval(document.formular.pocet8.value) + eval(document.formular.pocet9.value);

}

function pridat(produkt) {
	if (produkt.checked) {
		if (document.formular.polozka1.value == "") {
			document.formular.polozka1.value = produkt.name;
			document.formular.cenakus1.value = produkt.value;
			document.formular.pocet1.value = "1";
		} else if (document.formular.polozka2.value == "") {
			document.formular.polozka2.value = produkt.name;
			document.formular.cenakus2.value = produkt.value;
			document.formular.pocet2.value = "1";
		} else if (document.formular.polozka3.value == "") {
			document.formular.polozka3.value = produkt.name;
			document.formular.cenakus3.value = produkt.value;
			document.formular.pocet3.value = "1";
		} else if (document.formular.polozka4.value == "") {
			document.formular.polozka4.value = produkt.name;
			document.formular.cenakus4.value = produkt.value;
			document.formular.pocet4.value = "1";
		} else if (document.formular.polozka5.value == "") {
			document.formular.polozka5.value = produkt.name;
			document.formular.cenakus5.value = produkt.value;
			document.formular.pocet5.value = "1";
		} else if (document.formular.polozka6.value == "") {
			document.formular.polozka6.value = produkt.name;
			document.formular.cenakus6.value = produkt.value;
			document.formular.pocet6.value = "1";
		} else if (document.formular.polozka7.value == "") {
			document.formular.polozka7.value = produkt.name;
			document.formular.cenakus7.value = produkt.value;
			document.formular.pocet7.value = "1";
		} else if (document.formular.polozka8.value == "") {
			document.formular.polozka8.value = produkt.name;
			document.formular.cenakus8.value = produkt.value;
			document.formular.pocet8.value = "1";
		} else if (document.formular.polozka9.value == "") {
			document.formular.polozka9.value = produkt.name;
			document.formular.cenakus9.value = produkt.value;
			document.formular.pocet9.value = "1";
		} else alert('Formulář je plný, odešlete objednávku a pokračujte na dalším.');
		
	} else {
		
		if (document.formular.polozka1.value == produkt.name) {
			document.formular.polozka1.value = "";
			document.formular.cenakus1.value = "";
			document.formular.pocet1.value = "";
		} else if (document.formular.polozka2.value == produkt.name) {
			document.formular.polozka2.value = "";
			document.formular.cenakus2.value = "";
			document.formular.pocet2.value = "";
		} else if (document.formular.polozka3.value == produkt.name) {
			document.formular.polozka3.value = "";
			document.formular.cenakus3.value = "";
			document.formular.pocet3.value = "";
		} else if (document.formular.polozka4.value == produkt.name) {
			document.formular.polozka4.value = "";
			document.formular.cenakus4.value = "";
			document.formular.pocet4.value = "";
		} else if (document.formular.polozka5.value == produkt.name) {
			document.formular.polozka5.value = "";
			document.formular.cenakus5.value = "";
			document.formular.pocet5.value = "";
		} else if (document.formular.polozka6.value == produkt.name) {
			document.formular.polozka6.value = "";
			document.formular.cenakus6.value = "";
			document.formular.pocet6.value = "";
		} else if (document.formular.polozka7.value == produkt.name) {
			document.formular.polozka7.value = "";
			document.formular.cenakus7.value = "";
			document.formular.pocet7.value = "";
		} else if (document.formular.polozka8.value == produkt.name) {
			document.formular.polozka8.value = "";
			document.formular.cenakus8.value = "";
			document.formular.pocet8.value = "";
		} else if (document.formular.polozka9.value == produkt.name) {
			document.formular.polozka9.value = "";
			document.formular.cenakus9.value = "";
			document.formular.pocet9.value = "";
		}
	}

}