How do I add auto-cycle functionality, and integrate a pause button?

programming flash
1

What would I need to add in order to add auto-cycle functionality to my Flash Movie?

Here is my ActionScript:

function loadXML(loaded) {
if (loaded) {
xmlNode = this.firstChild;
image = [];
description = [];
href = [];
total = xmlNode.childNodes.length;
i = 0;
while (i < total) {
image* = xmlNode.childNodes*.childNodes[0].firstChild.nodeValue;
description* = xmlNode.childNodes*.childNodes[1].firstChild.nodeValue;
href* = xmlNode.childNodes*.childNodes[2].firstChild.nodeValue;
i++;
}
firstImage();
} else {
content = “file not loaded!”;
}
}
function nextImage() {
if (p < (total - 1)) {
p++;
}else{
p = 0;
}
if (loaded == filesize) {
picture._alpha = 0;
picture.loadMovie(image[p], 1);
desc_txt.text = description[p];
_global.href = href[p];
picture_num();
}
}
function prevImage() {
if (p > 0) {
p–;
}else{
p = (total - 1);
}

 picture._alpha = 0;
 picture.loadMovie(image[p], 1);
 desc_txt.text = description[p];
 _global.href = href[p];
 picture_num();

}
function firstImage() {
if (loaded == filesize) {
picture._alpha = 0;
picture.loadMovie(image[0], 1);
desc_txt.text = description[0];
_global.href = href[0];
picture_num();
}
}

function picture_num() {
current_pos = p + 1;
pos_txt.text = (current_pos + " / ") + total;
}
xmlData = new XML ();
xmlData.ignoreWhite = true;
xmlData.onLoad = loadXML;
xmlData.load(“images.xml”);
listen = new Object ();
listen.onKeyDown = function () {
if (Key.getCode() == 37) {
prevImage();
} else if (Key.getCode() == 39) {
nextImage();
}
};
Key.addListener(listen);
previous_btn.onRelease = function () {
prevImage();
};
next_btn.onRelease = function () {
nextImage();
};
p = 0;
this.onEnterFrame = function () {
filesize = picture.getBytesTotal();
loaded = picture.getBytesLoaded();
preloader._visible = true;
if (loaded != filesize) {
preloader.preload_bar._xscale = (100 * loaded) / filesize;
} else {
preloader._visible = false;
if (picture._alpha < 100) {
picture._alpha = picture._alpha + 10;
}
}
};