function Validar(form)
{
	
	var tt_orcamento = document.getElementById("tt_orcamento");
	var email = document.getElementById("email");
	var reEmail = /^[\w-]+(\.[\w-]+)*@(([\w-]{2,63}\.)+[A-Za-z]{2,6}|\[\d{1,3}(\.\d{1,3}){3}\])$/;
	
	if(tt_orcamento.value == "")
	{
		alert("It informs the name");
		tt_orcamento.focus();
		return false;
	}
	if(email.value == "") {
		alert("Informe seu e-mail!");
		email.focus();
		return false;
	} else {
		valid_email = reEmail.exec(email.value)
		if(valid_email == null) {
			alert("E-mail inválido");
			email.focus();
			return false;
		}	
	}
	
	form.submit();
}