var TimeToFade = 1000.0;

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

function animateFade(lastTick, eid)
{  
  var curTick = new Date().getTime();
  var elapsedTicks = curTick - lastTick;
 
  var element = document.getElementById(eid);
 
  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;
    
    
    switch(eid){
        case "one":
            fade('two');
        break;
        case "two":
            fade('three');
        break;
        case "three":
            fade('four');
        break;
        case "four":
            fade('five');
        break;
        case "five":
            fade('lissport');
        break;        
        case "six":
            fade('seven');
        break;        
        case "seven":
            fade('eight');
        break;
        case "eight":
            fade('lissport');
        break;
    }
    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 + ",'" + eid + "')", 33);
  
  
}