function changePass(toPass){
  var passField = document.getElementById('passWord');
  if (passField
      && passField.type){
    if (toPass){
      passField.type = 'password';
    }
    else {
      passField.type = 'text';
    }
  }
}

function checkEnter(e){
  var form = document.forms.loginForm;

  if(e.which){
    var keycode = e.which;
  } 
  else {
    var keycode = e.keyCode;
  }
  
  if(keycode == 13) {
    form.submit();
  }

}