add rotation to WP logo-slider plugin

Newbie with JQuery, and I’m trying to rig the Word Press Logo-Slider plugin (which you can find here) to infinitely rotate in a loop. Right now it comes to the end of the images and stops with this code:

`var displayWaitMessage=true; // Display a please wait message while images are loading?

var activeImage = false;
var imageGalleryLeftPos = true;
var imageGalleryWidth = false;
var imageGalleryObj = false;
var maxGalleryXPos = false;
var slideSpeed = -1;
var imageGalleryCaptions = new Array();
function startSlide(e)
{
if(document.all)e = event;
var id = this.id;
if(this.id==’arrow_right’){
slideSpeedMultiply = Math.floor((e.clientX – this.offsetLeft) / 5);
slideSpeed = -1*slideSpeedMultiply;
slideSpeed = Math.max(-10,slideSpeed);
}else{
slideSpeedMultiply = 10 – Math.floor((e.clientX – this.offsetLeft) / 5);
slideSpeed = 1*slideSpeedMultiply;
slideSpeed = Math.min(10,slideSpeed);
if(slideSpeed<0)slideSpeed=10;
}
}

function releaseSlide()
{
var id = this.id;
slideSpeed=-1;
}

function gallerySlide()
{
if(slideSpeed!=0){
var leftPos = imageGalleryObj.offsetLeft;
leftPos = leftPos/1 + slideSpeed;
if(leftPos>maxGalleryXPos){
leftPos = maxGalleryXPos;
slideSpeed = 0;

}
if(leftPos<minGalleryXPos){
leftPos = minGalleryXPos;
slideSpeed=0;
}

imageGalleryObj.style.left = leftPos + ‘px’;
}
setTimeout(‘gallerySlide()’,50);

}

function showImage()
{
if(activeImage){
activeImage.style.filter = ‘alpha(opacity=100)’;
activeImage.style.opacity = 1;
}
this.style.filter = ‘alpha(opacity=50)’;
this.style.opacity = .5;
activeImage = this;
}

function initSlideShow()
{
document.getElementById(‘arrow_left’).onmousemove = startSlide;
document.getElementById(‘arrow_left’).onmouseout = releaseSlide;
document.getElementById(‘arrow_right’).onmousemove = startSlide;
document.getElementById(‘arrow_right’).onmouseout = releaseSlide;

imageGalleryObj = document.getElementById(‘theImages’);
imageGalleryLeftPos = imageGalleryObj.offsetLeft;
imageGalleryWidth = document.getElementById(‘galleryContainer’).offsetWidth – 0;
maxGalleryXPos = imageGalleryObj.offsetLeft;
minGalleryXPos = imageGalleryWidth – document.getElementById(‘slideEnd’).offsetLeft;
var slideshowImages = imageGalleryObj.getElementsByTagName(‘IMG’);
for(var no=0;no<slideshowImages.length;no++){
slideshowImages[no].onmouseover = showImage;
}

var divs = imageGalleryObj.getElementsByTagName(‘DIV’);
for(var no=0;no<divs.length;no++){
if(divs[no].className==’imageCaption’)imageGalleryCaptions[imageGalleryCaptions.length] = divs[no].innerHTML;
}
gallerySlide();
}

function showPreview(imagePath,imageIndex){
var subImages = document.getElementById(‘previewPane’).getElementsByTagName(‘IMG’);
if(subImages.length==0){
var img = document.createElement(‘IMG’);
document.getElementById(‘previewPane’).appendChild(img);
}else img = subImages[0];

if(displayWaitMessage){
document.getElementById(‘waitMessage’).style.display=’inline’;
}
document.getElementById(‘largeImageCaption’).style.display=’none’;
img.onload = function() { hideWaitMessageAndShowCaption(imageIndex-1); };
img.src = imagePath;

}
function hideWaitMessageAndShowCaption(imageIndex)
{
document.getElementById(‘waitMessage’).style.display=’none’;
document.getElementById(‘largeImageCaption’).innerHTML = imageGalleryCaptions[imageIndex];
document.getElementById(‘largeImageCaption’).style.display=’block’;

}
window.onload = initSlideShow;`

It seems like I can get it to “bounce” (not a true rotation) from side to side by doing this:

function gallerySlide()
	{
		if(slideSpeed!=0){
			var leftPos = imageGalleryObj.offsetLeft;
			leftPos = leftPos/1 + slideSpeed;
			if(leftPos>maxGalleryXPos){
				leftPos = maxGalleryXPos;
				slideSpeed = -1;

			}
			if(leftPos<minGalleryXPos){
				leftPos = minGalleryXPos;
				slideSpeed=1;
			}

But that’s not a true rotation. Anyone have any ideas for how to do this? Or any suggestions for a good infinite rotating slider plugin?