// Funcoes de vadicacao do e-mail

function isEmailAddr(email){
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0){
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
  result = true;
  }
  return result;
}

function validaEmail(formField,fieldLabel,required){
  var result = true;
    if (required && !obrigatorio(formField,fieldLabel)) result = false;
   if (result) {

  if ((formField.value.length < 3) || !isEmailAddr(formField.value))  {
    alert("O email foi digitado de forma incorreta");
    formField.focus();
    result = false;
  }
   }
  return result;

}