function enviardados(){
	
txt = document.form1.email.value;

if(document.form1.cnpjcpf.value=="" )
{
	document.form1.cnpjcpf.focus();
	document.getElementById("validaC").style.display="block";
	return false;
}
else
{
	document.getElementById("validaC").style.display="none";
}
if(document.form1.empresa.value=="0" )
{
	document.form1.empresa.focus();
	document.getElementById("validaEmpresa").style.display="block";
	return false;
}
else
{
	document.getElementById("validaEmpresa").style.display="none";
}

if(document.form1.nome.value=="" )
{
	document.form1.nome.focus();
	document.getElementById("validaNome").style.display="block";
	return false;
}
else
{
	document.getElementById("validaNome").style.display="none";
}
if(document.form1.email.value=="" )
{
	document.form1.email.focus();
	document.getElementById("validaEmail").style.display="block";
	return false;
}
else
{
	document.getElementById("validaEmail").style.display="none";
}

if ((txt.length != 0) && ((txt.indexOf("@") < 1)))
  {
    document.form1.email.focus();
	document.getElementById("validaEmailCorreto").style.display="block";
	return false;
  }
else
{
	document.getElementById("validaEmailCorreto").style.display="none";
}





if(document.form1.mensagem.value=="" )
{
	document.form1.mensagem.focus();
	document.getElementById("validaMensagem").style.display="block";
	return false;
}
else
{
	document.getElementById("validaMensagem").style.display="none";
}



return true;
}


function numeros()
  {
tecla = event.keyCode;
if (tecla >= 48 && tecla <= 57)
    {
    return true;
    }
else
    {
    return false;
    }
  }
  
function letras()
{
	tecla = event.keyCode;
	if(tecla>=48 && tecla <= 57)
	{
		return false;
	}
	else
	{
		return true;
	}
}


			function Formatadata(Campo, teclapres)
			{
				var tecla = teclapres.keyCode;
				var vr = new String(Campo.value);
				vr = vr.replace("/", "");
				vr = vr.replace("/", "");
				vr = vr.replace("/", "");
				tam = vr.length + 1;
				if (tecla != 8 && tecla != 8)
				{
					if (tam > 0 && tam < 2)
						Campo.value = vr.substr(0, 2) ;
					if (tam > 2 && tam < 4)
						Campo.value = vr.substr(0, 2) + '/' + vr.substr(2, 2);
					if (tam > 4 && tam < 7)
						Campo.value = vr.substr(0, 2) + '/' + vr.substr(2, 2) + '/' + vr.substr(4, 7);
				}
			}