function fade(id, fadeInDelay, fadeOutDelay, startTrans, stopTrans, offsetTime, deltaTrans)
{
	this.obj = ("Fadeobj" + fade._count++); 	// allow setTimeout references to the current object
	eval(this.obj + " = this");
	this.layerObj = document.getElementById( id );
	this.fadeInDelay = fadeInDelay || 40;
	this.fadeOutDelay = fadeOutDelay || this.fadeInDelay;
	this.startTrans = startTrans;
	this.stopTrans = stopTrans;
	this.offsetTime = (offsetTime || 0) * 1000;
	this.deltaTrans = deltaTrans || 10;
	this.timer = null;
	this.command = null;
	this.paused = false;
	this.repeat = true;
	this.started = false;

	this.norepeat = function()
	{
		this.repeat = false;
	}

	this.setTransBy = function(deltaTrans)
	{
		this.setTrans(this.getTrans() + deltaTrans);
	}

	this.toggle = function()
	{
		if( !this.started )  // we haven't started fading yet.
		{
			this.start();
		}
		else if( this.paused )
		{
			this.paused = false;
			this.unpause();
		}
		else
		{
			this.paused = true;
			this.pause();
		}
	}

	this.timeout = function(command, delay)
	{
		this.command = command;
		this.timer = setTimeout(command, delay);
	}

	this.setTrans = function(opacity)
	{
		if( !this.layerObj ) return;

		if( this.layerObj.filters )
		{
			this.layerObj.filters.alpha.opacity = opacity;
		}
		if (!document.all && this.layerObj.style.setProperty) this.layerObj.style.setProperty("-moz-opacity", opacity / 100, "");
	}

	this.getTrans = function()
	{
		if( !this.layerObj ) return 0;
		if (document.all)
		{
			if( typeof(this.layerObj.filters.alpha.opacity) != "undefined" )
				return this.layerObj.filters.alpha.opacity;
		}
		else if( this.layerObj.style.getPropertyValue )
				return this.layerObj.style.getPropertyValue("-moz-opacity") * 100;
		return 100;
	}

	this.start = function()
	{
    if( this.layerObj )
    {
    	this.started = true;
      this.setTrans( this.startTrans );
      if( this.startTrans > this.endTrans ) this.timeout( this.obj + ".fadeOut()", this.offsetTime );
      else this.timeout( this.obj + ".fadeIn()", this.offsetTime );
    }
  }

    this.unpause = function()
    {
    	if( !this.started )  // we never started, so we need to start instead of unpausing
    	{
    		this.start();
    	}
    	else eval(this.command); // we were explicitly paused
    }

    this.pause = function()
    {
    	this.stopTimer();
    }

    this.stopTimer = function()
    {
    	clearTimeout(this.timer);
    	this.timer = null;
			this.started = false;
    }

    this.stop = function()
    {
    	this.command = null;
    	this.stopTimer();
    }

    this.fadeOut = function()
    {
    	this.stopTimer();
	    if (this.getTrans() > this.stopTrans)
	    {
	        this.setTransBy(-1 * this.deltaTrans);
	        this.timeout(this.obj + ".fadeOut()", this.fadeOutDelay);
	    }
	    else
	    {
	       if (this.repeat) this.timeout(this.obj + ".fadeIn()", this.fadeInDelay);
	    }
	  }

	this.fadeIn = function()
	{
		this.stopTimer();
	    if (this.getTrans() < this.startTrans)
	    {
	      this.setTransBy(this.deltaTrans);
	      this.timeout(this.obj + ".fadeIn()", this.fadeInDelay);
      }
	    else
	    {
	      if (this.repeat) this.timeout(this.obj + ".fadeOut()", this.fadeOutDelay);
	    }
	}

	return this;
}

fade._count = 0;