function extraToggle() {
  new Effect.toggle('extra', 'slide', {afterFinish: callBackExtraScroll});
}

function callBackExtraScroll() {
  new Effect.ScrollTo('footer');
}

function setNewVars(a,b,c,d) {
  var myFlashMovie = document.getElementById("flash");
  myFlashMovie.myFunctionId(a,b,c,d);
}

document.observe("dom:loaded", function() {
  if((element = document.getElementById('extra')) != undefined) element.style.display = 'none';
});