function validarCampos(){
	var form = document.getElementById ("form2");
	var correcto = true;
	//chequeamos los campos
	if(form.nom.value == ""){
		correcto = false;
	}
	if(form.ap.value == ""){
		correcto = false;
	}
	if(form.emp.value == ""){
		correcto = false;
	}
	if(form.car.value == ""){
		correcto = false;
	}
	if(form.tel.value == ""){
		correcto = false;
	}
	if(form.mail.value == ""){
		correcto = false;
	}
	if(form.cons.value == ""){
		correcto = false;
	}
	//enviamos el form
	if(correcto){
		form.submit();
	}else{
		document.getElementById ("error").innerHTML = "Todos los campos deben estar completos.";
	}
}