function przelicz()
{
	var wartnetto = 0;
	var cena2 = parseInt(document.getElementById('cena2').value);
	
	if(document.getElementById('ilosc').value==1)
		wartnetto = document.getElementById('cena').value
	else
		wartnetto = (cena2 * (document.getElementById('ilosc').value-1) ) + parseInt(document.getElementById('cena').value) ;

	wartnetto = Math.round(wartnetto*100)/100;
	document.getElementById('wartnetto').innerHTML = wartnetto;
	document.getElementById('iloscpokaz').innerHTML = (document.getElementById('ilosc').value-1);
	document.getElementById('wartbrutto').innerHTML = Math.round(wartnetto*1.22*100)/100;
	document.getElementById('wartbruttofrm').value = Math.round(wartnetto*1.22*100)/100;
}

function validForm()
{
	var lReturn = true;
	
	if(document.getElementById('dane[firma]').value=='') lReturn = false;
	if(document.getElementById('dane[adres]').value=='') lReturn = false;
	if(document.getElementById('dane[nip]').value=='') lReturn = false;
	if(document.getElementById('dane[telefon]').value=='') lReturn = false;		
	if(document.getElementById('kontakt[imie]').value=='') lReturn = false;	
	if(document.getElementById('kontakt[telefon]').value=='') lReturn = false;	
	if(document.getElementById('kontakt[email]').value=='') lReturn = false;				

	if(document.getElementById('kontakt[regulamin]').checked==false)
	{
		alert('Musisz zaakceptować warunki zakupu');
		lReturn = false;
	}
	
	
	
	
	if(!lReturn) alert('Proszę wypełnić wymagane pola');
	
	return lReturn;
}