# Need help with AS

**URL:** <https://forum.kirupa.com/t/need-help-with-as/249024>\
**Category:** Uncategorized\
**Created:** [January 14, 2008, 7:16pm UTC](https://forum.kirupa.com/t/need-help-with-as/249024 "2008-01-14T19:16:41Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![max999](https://avatars.discourse-cdn.com/v4/letter/m/ac91a4/32.png) [@max999](https://forum.kirupa.com/u/max999)\
**Post date:** [January 14, 2008, 7:16pm UTC](https://forum.kirupa.com/t/need-help-with-as/249024/1 "2008-01-14T19:16:41Z")

</div>

I can’t figure it out…  
Basically i am doing an xml external photo gallery and i have 2 buttons(next\_btn and prev\_btn) and i want the prev button to disappear when the gallery is loaded(because is slide number 1 and there’s no prev images) and do the same at the end of the gallery(no next button because that is the last slide).  
This is the code :  
var tcount =0  
function loadXML(loaded) {  
if (loaded) {  
xmlNode = this.firstChild;  
image = [];  
description = [];  
thumbnails = [];  
total = xmlNode.childNodes.length;  
for (i=0; i\<total; i++) {  
image\* = xmlNode.childNodes\*.childNodes[0].firstChild.nodeValue;  
description\* = xmlNode.childNodes\*.childNodes[1].firstChild.nodeValue;  
thumbnails\* = xmlNode.childNodes\*.childNodes[2].firstChild.nodeValue;

```
    }
    firstImage();
     thumbnails_fn(tcount);
} else {
    content = "file not loaded!";
}

```

}  
preloader.preload\_bar.\_xscale=0  
xmlData = new XML();  
xmlData.ignoreWhite = true;  
xmlData.onLoad = loadXML;  
xmlData.load(“deluxe.xml”);  
/////////////////////////////////////  
listen = new Object();  
listen.onKeyDown = function() {  
if (Key.getCode() == Key.LEFT) {  
prevImage();  
} else if (Key.getCode() == Key.RIGHT) {  
nextImage();  
}  
};  
Key.addListener(listen);  
previous\_btn.onRelease = function() {  
prevImage();  
};  
next\_btn.onRelease = function() {  
nextImage();  
};  
/////////////////////////////////////  
p = 0;

function stuff() {  
preloader.\_visible = true;  
var filesize = picture.getBytesTotal();  
var loaded = picture.getBytesLoaded();

```
preloader.preload_bar._xscale = 100*loaded/filesize;

if (picture._width) {
    picture._x = bgd._x-picture._width/2;
    picture._y = bgd._y-picture._height/2;
    preloader._visible = false;
    bgd._width += (picture._width+10-bgd._width)/3;
    bgd._height += (picture._height+10-bgd._height)/3;
    if (Math.abs(bgd._width-picture._width-10)&lt;5) {
        bgd._height = picture._height+10;
        bgd._width = picture._width+10;
        picture._alpha += 10;
        if (picture._alpha&gt;100) {
            delete this.onEnterFrame;
            preloader.preload_bar._xscale=0
        }
    }
}

```

}  
function nextImage() {  
if (p\<(total-1)) {  
p++;  
picture.\_alpha = 0;  
picture.loadMovie(image[p], 1);  
\_root.onEnterFrame = stuff;  
desc\_txt.text = description[p];  
picture\_num();  
}  
}  
function prevImage() {  
if (p\>0) {  
p–;  
picture.\_alpha = 0;  
picture.loadMovie(image[p], 1);  
\_root.onEnterFrame = stuff;  
desc\_txt.text = description[p];  
picture\_num();  
}  
}  
function firstImage() {

```
    picture._alpha = 0;
    picture.loadMovie(image[0], 1);
    _root.onEnterFrame = stuff;
    desc_txt.text = description[0];
    picture_num();

```

}  
function picture\_num() {  
current\_pos = p+1;  
pos\_txt.text = current\_pos+"/"+total;  
}  
this.createEmptyMovieClip(“tscroller”, 1000);  
scroll\_speed = 10;  
var tot = 0;  
tscroller.onEnterFrame = function() {  
if ((\_root.\_ymouse\>=thumbnail\_mc.\_y) && (\_root.\_ymouse\<=thumbnail\_mc.\_y+thumbnail\_mc.\_height)) {  
if (\_root.\_xmouse\>=(hit\_right.\_x-40)) {  
for (var obj in cliparray) {  
cliparray[obj].\_x -= scroll\_speed;  
}  
trace(cliparray[0].\_x);  
if (cliparray[0].\_x\<-cliparray[0].\_width) {  
cliparray[0].\_x = cliparray[cliparray.length-1].\_x+cliparray[cliparray.length-1].\_width+5;  
var j = cliparray.splice(0, 1);  
cliparray = cliparray.concat(j);  
}  
} else if (\_root.\_xmouse\<=(hit\_left.\_x+40)) {  
for (var obj in cliparray) {  
cliparray[obj].\_x += scroll\_speed;  
}  
if (cliparray[cliparray.length-1].\_x\>250) {  
trace(cliparray[0].\_x)  
cliparray[cliparray.length-1].\_x = cliparray[0].\_x-(cliparray[cliparray.length-1].\_width+5);  
var j = cliparray.splice(cliparray.length-1, 1);  
cliparray = j.concat(cliparray);  
}  
}  
}  
};  
cliparray=[]  
function checkloaded(k){  
trace(k)  
if(k\<image.length-1){  
k++  
thumbnails\_fn(k)  
}  
}

Thanks a lot  
Massimo