Tengo problemas con un carrusel en javascript, ¿Alguien puede ayudarme?

[jon-zr]

¡Qué tal, gente!

Estoy haciendo una página y tengo problemas con un carrusel de imágenes con link, es de 5 imágenes y en la tercera se atora y ya no avanza. Ya chequé todo el código y no le encuentro la falla. Apenas voy empezando en esto del javascript y aún no soy muy bueno.

Espero postear correctamente los códigos:

El html está en http://lookingback.com.mx/slide.html

El javascript es el siguiente:

<!--
function highlight(){

this.images = new Array();
this.botones = new Object();
this.links = new Object();
this.container;
this.navegation;
this.counterpreloader = 0;
this.currentimage = 0;
this.counter = 0;
this.rotator;
this.time;

this.slider = function(cont,nav,t){
var root = this;
this.time = t * 1000;
this.container = document.getElementById(cont);
this.botones = this.container.getElementsByTagName('p');
var total = this.container.getElementsByTagName('img');
for(var i=0; i<total.length; i++){
this.images[i] = total[i];
var img = new Image();
img.z = i;
img.onload = function(){
root.images[this.z].style.zIndex = this.z + 1;
root.counterpreloader+= 1;
if(root.counterpreloader >= total.length){
root.images[0].style.zIndex = total.length + 1;
root.fadeElement(root.images[0],true);
root.counterpreloader = 0;
root.swithImage(root.currentimage);
root.container.style.background = "white";
root.loadButtons(nav);
}
}
img.src = this.images[i].src;
}
}

this.loadButtons = function(nav){
this.navegation = document.getElementById(nav);
this.links = this.navegation.getElementsByTagName('a');
var root = this;
for(var i=0; i<this.botones.length; i++){
this.links[i].onclick = function(){
root.chageItem(this.parentNode);
}
}
}

this.fadeElement = function(element,fadetype){
if(fadetype){
var fadenumber = 0;
}else{
var fadenumber = 10;
}
var fadeopacity;
var fadealpha;
var showcontainer = setInterval(fade,100);
function fade(){
if(fadetype){
fadenumber+= 2;
fadeopacity = fadenumber / 10;
fadealpha = fadenumber * 10;
if(fadenumber >= 10){
clearInterval(showcontainer);
element.style.opacity = '1';
element.style.filter = 'alpha(opacity=100)';
}else{
element.style.opacity = fadeopacity;
element.style.filter = 'alpha(opacity='+fadealpha+')';
}
}else{
fadenumber-= 2;
fadeopacity = fadenumber / 10;
fadealpha = fadenumber * 10;
if(fadenumber <= 0){
clearInterval(showcontainer);
element.style.opacity = '0';
element.style.filter = 'alpha(opacity=0)';
}else{
element.style.opacity = fadeopacity;
element.style.filter = 'alpha(opacity='+fadealpha+')';
}
}
}
}

this.swithImage = function(current){
this.currentimage = current;
clearTimeout(this.rotator);
this.rotator = setTimeout(swithImg,this.time);
var root = this;
function swithImg (){
if(root.currentimage >= root.images.length - 1){
root.fadeElement(root.images[root.currentimage],false);
root.images[root.currentimage].style.zIndex = root.currentimage;
root.fadeElement(root.images[0],true);
root.images[0].style.zIndex = root.images.length + 1;
root.tagMake(0);
root.currentimage = root.images.length;
}else{
root.fadeElement(root.images[root.currentimage],false);
root.images[root.currentimage].style.zIndex = root.currentimage;
root.fadeElement(root.images[root.currentimage + 1],true);
root.images[root.currentimage + 1].style.zIndex = root.images.length + 1;
root.tagMake(root.currentimage + 1);
}
if(root.currentimage >= root.images.length){
root.currentimage = 0;
}else{
root.currentimage++;
}
root.rotator = setTimeout(swithImg,root.time);
}
}

this.chageItem = function(element){
if(element != this.botones[this.currentimage]){
for(var i=0; i<this.botones.length; i++){
if(element == this.botones[i]){
this.tagMake(i);
this.fadeElement(this.images[this.currentimage],false);
this.images[this.currentimage].style.zIndex = this.currentimage;
this.fadeElement(this.images[i],true);
this.images[i].style.zIndex = this.images.length + 1;
this.swithImage(i);
}
}
}
}

this.tagMake = function(num){
for(var i=0; i<this.botones.length; i++){
this.botones[i].className = "";
}
this.botones[num].className = "selected";
}

}
-->

Y éste es el css:

/* General Styles*/

img { border: none; }
a { outline: none; }
body { margin: 0; }

/* highlight Styles */

#highlight { width: 650px; height: 250px; background: url(../slide/loading.gif) center center no-repeat; font-family: Arial, Helvetica, sans-serif; }
#highlight img { border: none; position: absolute; filter: alpha(opacity=0); opacity: 0; -moz-opacity:0; }
#highlight .navegationbg { width: 650px; margin-top: 250px; position: absolute; z-index: 5; background: url(../slide/bg.gif) repeat-x; height: 50px; filter: alpha(opacity=80); opacity: .8; -moz-opacity:0.8; }
#highlight #navegation {
width: 650px;
margin-top: 260px;
position: absolute;
z-index: 6;
border-top: solid 1px #535353;
height: 100px;
left: 0px;
top: -8px;
}
#highlight #navegation p { margin: 0; width: 137px; _width: 131px; float: left; height: 48px; font-size: 0.6em; line-height: 1.3em; color: white; background: url(../slide/border.gif) repeat-y top right; line-height: 1.5em; }
#highlight #navegation p.withoutborder { background: none; }
#highlight #navegation p.selected { background: url(../slide/bg-selected.gif); }
#highlight #navegation span { font-size: 1.8em; }
#highlight #navegation p a { color: white; text-decoration: none; padding: 10px 0 0 10px; _padding: 5px 0 0 5px; display: block; height: 48px; width: 137px; _width: 131px; }

Ojalá puedan ayudarme. Muchas gracias.

[jon-zr]

Sigo sin poder encontrar la falla. :S