Help need about unloading main movie

There are hundreds of threads on the web about unloading movie but none of them work. For example, the code below gives this error: TypeError: Error #2007:

Code:

---

var alert:Boolean=true;
if (loaderInfo.url!="someurl") {
        removeSwf();
}
var swfHolder:Loader = new Loader();
function loadSwf(target:String):void {
        addChild(swfHolder);
        swfHolder.load(new URLRequest(target));
}
function removeSwf():void {
        removeChild(swfHolder);
}

---

I'm guessing 2007 is a null reference error? Because you're calling removeSwf() before loadSwf()? And it's trying to remove the loader before it's been added so it doesn't have a .parent? perhaps?

Both of these should work. If you want to load a different object the former object is replaced with the new, no need to remove. If you just want to unload then use
swfHolder.unload();
This was buggy in earlier Flash players but is now working.


Example 1:
var swfHolder:Loader = new Loader();
function loadSwf (target:String):void
{
if(swfHolder!=null)
{
removeChild(swfHolder);
}
addChild (swfHolder);
swfHolder.load (new URLRequest(target));
}

Example 2:
var swfHolder:Loader = new Loader();
addChild (swfHolder);
function loadSwf (target:String):void
{
swfHolder.load (new URLRequest(target));
}

Thanks for replies. cancerinform your both codes don't give error but they don't unload the movie even when I add swfHolder.unload()

neznein9, I put removeSwf() in the end but this time another error occures: ArgumentError: Error #2025:

Your problem lies with how you apply this code in your movie and unload will work only with upgraded Flashplayers.