var TimeToFade = 3000.0;

function fade_in (element_id)
{
    setTimeout("fade('" + element_id + "')", 3000);
}

function fade(element_id)
{
  var element = document.getElementById(element_id);
  
  if (element == null)return;
  element.FadeState = -2;
  element.FadeState = element.FadeState == 2 ? -1 : 1;
  element.FadeTimeLeft = TimeToFade;
  setTimeout("animateFade(" + new Date().getTime() + ",'" + element_id + "')", 33);
}

function animateFade(lastTick, element_id)
{  
  var curTick = new Date().getTime();
  var elapsedTicks = curTick - lastTick;
  var element = document.getElementById(element_id);
	  if (element.FadeTimeLeft <= elapsedTicks)
	  {
	    element.style.opacity = element.FadeState == 1 ? '1' : '0';
	    element.style.filter = 'alpha(opacity = ' + (element.FadeState == 1 ? '100' : '0') + ')';
	    element.FadeState = element.FadeState == 1 ? 2 : -2;
	    //alert('gotowe');
	    var el = document.getElementById('new_video');
	    el.style.display = 'block';
	    return;
	  }
  element.FadeTimeLeft -= elapsedTicks;
  var newOpVal = element.FadeTimeLeft/TimeToFade;
  if (element.FadeState == 1)newOpVal = 1 - newOpVal;
  element.style.opacity = newOpVal;
  element.style.filter = 'alpha(opacity = ' + (newOpVal*100) + ')';
  setTimeout("animateFade(" + curTick + ",'" + element_id + "')", 33);
}