function calcularp(preco) {
	document.getElementById('iddivp').innerHTML = 'Total: ' + form.quantidadep.value * preco + '€';
}
function calcularu(preco) {
	document.getElementById('iddivu').innerHTML = 'Total: ' + form.quantidadeu.value * preco + '€';
}
function checkCheckBox(f) {
	if (form.aceito.checked == false) {
		alert('Tens de aceitar as condições estabelecidas.');
		return false;
	} else
		return true;
}
function mostrarp() {
	document.getElementById('idbotaop').style.visibility = 'visible';
	document.getElementById('iddivp').style.visibility = 'visible';
	document.getElementById('idquantp').style.visibility = 'visible';
	document.getElementById('idbotaou').style.visibility = 'hidden';
	document.getElementById('iddivu').style.visibility = 'hidden';
	document.getElementById('idquantu').style.visibility = 'hidden';
}
function mostraru() {
	document.getElementById('idbotaou').style.visibility = 'visible';
	document.getElementById('iddivu').style.visibility = 'visible';
	document.getElementById('idquantu').style.visibility = 'visible';
	document.getElementById('idbotaop').style.visibility = 'hidden';
	document.getElementById('iddivp').style.visibility = 'hidden';
	document.getElementById('idquantp').style.visibility = 'hidden';
}