function formatar(src, mask) {
	var i = src.value.length;
	var saida = mask.substring(i,i+1);
	var ascii = event.keyCode;
	if (saida == "A") {
		if ((ascii >=97) && (ascii <= 122)) { event.keyCode -= 32; }
		else { event.keyCode = 0; }
	} else if (saida == "0") {
		if ((ascii >= 48) && (ascii <= 57)) { return }
		else { event.keyCode = 0 }
	} else if (saida == "#") {
		return;
	} else {
		src.value += saida;
		i += 1
		saida = mask.substring(i,i+1);
		if (saida == "A") {
			if ((ascii >=97) && (ascii <= 122)) { event.keyCode -= 32; }
			else { event.keyCode = 0; }
		} else if (saida == "0") {
			if ((ascii >= 48) && (ascii <= 57)) { return }
			else { event.keyCode = 0 }
		} else { return; }
	}
}