function hideForgotPassword() {
  Element.hide("forgotten");
  Element.hide("opacity");
}
function showForgotPassword() {
  Element.show("opacity");
  new Ajax.Request("/app/lostpass", {
    method: 'get', 
    onComplete: showResponse
  });
}
function sendForgotPassword() {
  new Ajax.Request("/app/lostpass", {
    method: 'post',
    parameters: Form.serialize('forgotPassForm'),
    onComplete: showResponse
  });
}
function showResponse (originalRequest)
{
  Element.show('forgotten');
  Element.update('forgotten', originalRequest.responseText);
}