function validarComentari()
{

	if(document.formulari.name.value=="")
	{
		alert("Name not introduced");
		document.formulari.name.focus();
		return;
	}


	else if(document.formulari.email.value=="")
	{
		alert("Email not introduced");
		document.formulari.email.focus();
		return;
	}

	else if (document.formulari.email.value.indexOf ("@") == -1 ||
    	document.formulari.email.value.indexOf (".") == -1)
	{
		alert ("Incorrect Email,\n");
		document.formulari.mail.focus ();
		return;
	}

	else if(document.formulari.questions.value=="")
	{
		alert("No questions introduced");
		document.formulari.questions.focus();
		return;
	}

	else
	{
		document.formulari.submit();
	}
}