function SubmitForm(f) {
	var bOk=true;
	bOk=bOk&&checkElements(f.getElementsByTagName("input"));
	bOk=bOk&&checkElements(f.getElementsByTagName("textarea"));
	
	
	if (bOk) {
		f.submit();	
	}
}
function checkElements(els) {
	for (var i=0; i<els.length; i++) {
		if (els[i].getAttribute("required")=="1" && els[i].value=="") {
			alert ("Preencha todos os campos!");
			els[i].focus();
			return false;
		}
	}
	return true;
}