function validate()
{
	if (document.theform.titol.value.length == 0)
	{
		alert('Cal omplir el títol.\nTitle is required');
		document.theform.titol.focus();
		return false;
	}

	if (document.theform.sinopsi.value.length == 0)
	{
		alert('Cal omplir la sinopsi!');
		document.theform.sinopsi.focus();
		return false;
	}

	if (document.theform.director.value.length == 0)
	{
		alert('Cal omplir el director!');
		document.theform.director.focus();
		return false;
	}

	if (document.theform.durada.value.length == 0)
	{
		alert('Cal omplir la durada');
		document.theform.durada.focus();
		return false;
	} else
	{
		var quan = document.theform.durada.value;
		if (quan < 1)
		{
			alert('Vols dir que no és massa curt?');
			document.theform.durada.focus();
			return false;
		}

		if (quan > 24)
		{
			alert('La durada màxima és de 24 minuts');
			document.theform.durada.focus();
			return false;
		}
	}

	if (document.theform.format.options[document.theform.format.selectedIndex].value == 0)
	{
		alert('Cal seleccionar un format');
		document.theform.format.focus();
		return false;
	}

	if ( document.theform.email.value.length == 0 )
	{
		alert('Cal omplir l\'email');
		document.theform.email.focus();
		return false;
	} else
	{
		var etest = document.theform.email.value.replace(/^\s+|\s+$/g, '');
		var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/;

		if ( !email.test(etest) )
		{
			alert('Aquest email sembla ful!');
			document.theform.email.focus();
			return false;
		}
	}

	document.theform.submit();
}