Preloader interruption problem

Question

I am using the following script to preload external .swf's in
my sites. The problem is that when it is interrupted (another link
is clicked). It makes the parent .swf freak out (it plays
continuously through the entire file without paying attention to
stop commands or anything else). Anyone have an idea how to fix
this?
stop();
loadingBar._xscale = 1;
var loadingCall:Number = setInterval(preloadSite, 50);
function preloadSite():Void {
var siteLoaded:Number = getBytesLoaded();
var siteTotal:Number = getBytesTotal();
var percentage:Number = Math.round(siteLoaded/siteTotal*100);
loadingBar._xscale = percentage;
percentDisplay.text = percentage + "%";
if (siteLoaded >= siteTotal) {
clearInterval(loadingCall);
play();
Here is the site it's used in:
http://www.vanderhurdstudio.com

Answer 1

You need to clear out the Interval that loadingCall is
referencing to whenever another link is clicked. The loadingCall
variable is set locally and is only a refence to the global
Interval being set. What's happening when another link is clicked,
is the local loadingCall variable is getting deleted/reset, but the
global Interval still exists and is losing it's timeline reference.
When this happens, the Interval will apply whatever commands are in
the function passed to it (play() in this case) upon whatever
timeline the Interval can find - the parent .swf that still exists.
So when this preloader is interupted, the Interval is telling the
parent .swf to play() every .050 seconds and creating the effect of
playing continuously through the file without stopping - it is
stopping, but being told to play again faster than you can notice
the stop.