function getPrice() {
	if(document.getElementById('tisk').value == 2) {
		document.getElementById('logo').value = 0;
		document.getElementById('logo').disabled = true;	
	} else {
		document.getElementById('logo').disabled = false;	
	}
	if(document.getElementById('papir').value > 2) {
		document.getElementById('plast').value = 1;
		document.getElementById('plast').disabled = true;
	} else {
		document.getElementById('plast').disabled = false;
	}
	param = "act=getPrice&par1=" + document.getElementById('kolicina').value + "&par2="+ document.getElementById('tisk').value + "&par3="+ document.getElementById('papir').value + "&par4="+ document.getElementById('plast').value + "&par5="+ document.getElementById('rob').value + "&par6="+ document.getElementById('logo').value;
	doAjax('ajax.php',param,'cback','get','0');
}

function cback(text) {
	document.getElementById('price').innerHTML = text + " EUR";
}