//=== Função para remover os espaços no início e no final de uma string ===
function Trim(strString) {
  //Declarar variáveis
  var strCaracter = "";

  //Sair, se o estiver vazia
  if (strString.length == 0)
    return "";

  //Espaços no início
  strCaracter = strString.substring(0, 1);

  while (strCaracter == " ") {
    strString = strString.substring(1, strString.length);

    strCaracter = strString.substring(0, 1);
  }

  //Espaços no final
  strCaracter = strString.substring(strString.length - 1, strString.length);

  while (strCaracter == " ") {
    strString = strString.substring(0, strString.length - 1);

    strCaracter = strString.substring(strString.length - 1, strString.length);
  }

  //Retornar string ajustada
  return strString;
}