var TimeToFade = 500.0;
var FadeValue  = 0.65;

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;
      /* Resolved IE AA bug */
      element.style.filter = '';
      element.style.backgroundColor = '#FFFFFF';
    }
    else
    {
      element.FadeState = -2;
    }
  }
   
  if(element.FadeState == 1 || element.FadeState == -1)
  {
    element.FadeState = element.FadeState == 1 ? -1 : 1;
    element.FadeTimeLeft = TimeToFade - element.FadeTimeLeft;
  }
  else
  {
    element.FadeState = element.FadeState == 2 ? -1 : 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' : FadeValue;
    element.style.filter = 'alpha(opacity = '
        + (element.FadeState == 1 ? '100' : (FadeValue * 100)) + ')';
    element.FadeState = element.FadeState == 1 ? 2 : -2;
    return;
  }
 
  element.FadeTimeLeft -= elapsedTicks;
  var newOpVal = element.FadeTimeLeft / TimeToFade;
  if(element.FadeState == 1)
    newOpVal = 1 - newOpVal;
  if (newOpVal < FadeValue) newOpVal = FadeValue;    
  element.style.opacity = newOpVal;
  element.style.filter = 'alpha(opacity = ' + (newOpVal * 100) + ')';
 
  setTimeout("animateFade(" + curTick + ",'" + eid + "')", 33);
}

function mShowProduct(id, fade_id) {
	var obj = document.getElementById(id);
	if (obj != null) {
	   for (var i = 1; i <= 8; i++) {
	      fade(fade_id + i);
	   }	
	   obj.className = 'addon_boxes mFloatProduct mFloatProductHover';
	}
}

function mHideProduct(id, fade_id) {
	var obj = document.getElementById(id);
	if (obj != null) {
	   for (var i = 1; i <= 8; i++) {
	      fade(fade_id + i);
	   }	
	   obj.className = 'addon_boxes mFloatProduct';
	}
}