var imageID = 0;
var timeoutID = 0;
var playMode = 1;


function imageInclude()
{
if (imageID < numOfImages)
	imageID++
else
	imageID = 1;
}

function currImageNo()
{
if (imageID > 1)
	imageID--;
else
	imageID = numOfImages;
}

function setCurrImage()
{
	document.MainImage.src = imageAr[imageID].src;
}

function updateImage()
{
	var currTimeoutValue;
	
	currTimeoutValue = timeoutValue;

	if (playMode == 1)
	{
		imageInclude();
		if (imageID == numOfImages) 
			currTimeoutValue += animDelay;
	}
	else
	{
		currImageNo();
		if (imageID == 1) 
			currTimeoutValue += animDelay;
	}
	setCurrImage();
	timeoutID = setTimeout("updateImage()", currTimeoutValue);
}