function google_search() {
  var local = document.getElementById("google_site");
  var texto = document.getElementById("buscar").value;
  if(local.checked == true) {
    //location.href = "http://www.google.com/search?sitesearch=www.csme.com.br&q=" + texto;
    window.open("http://www.google.com/search?sitesearch=www.csme.com.br&q=" + texto);
  } else {
    //location.href = "http://www.google.com.br/search?hl=pt-BR&q=" + texto + "&btnG=Pesquisa+Google";
    window.open("http://www.google.com.br/search?hl=pt-BR&q=" + texto + "&btnG=Pesquisa+Google");
  }
}