<!--

/****** LOGIN FORM CHECKER ******/

function checkLoginForm(str_form) {

  trimAll(str_form);

  var obj_username = document.forms[str_form].elements['username'];
  var obj_password = document.forms[str_form].elements['password'];

  if (isBlank(obj_username.value)) {
    alert("Please enter your username.");
    obj_username.focus();
    return false;
  }
  else if (!isValidEmail(obj_username.value)) {
    alert("You must enter a valid email address.");
    obj_username.focus();
    return false;
  }
  else if (isBlank(obj_password.value)) {
    alert("Please enter your password.");
    obj_password.focus();
    return false;
  }
  else if (!isAlphaNumeric(obj_password.value)) {
    alert("Your password should only contain letters and numbers.");
    obj_password.focus();
    return false;
  }
  else {
    return true;
  }
}

// -->