How to check event.target type in "if" statement

Hi, i have "roll over" event listener and i would like to that works only with MovieClips (without textfields etc.). I would like to write something like that:
if(event.target == MovieClip){ do something }
else { do something else}
This doesn`t work properly.
How to check type of event.target in "if" statement?
Thanks for any help.

:
if(getQualifiedClassName(event.target) == "flash.display::MovieClip"){ do something }
else { do something else}
.

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   at System.RuntimeType.InvokeDispMethod(String name, BindingFlags
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How do I use the event.target.name String with an external dispatchEvent?

...I hope the title question makes sense...
On my stage I have an externally loaded SWF with a button. When clicked the button dispatches an event to the main stage.
On the main stage a listener then loads an SWF into a loader called gallery.
The gallery loader is also being shared by buttons on the main stage which use the event.target.name String to call in SWFs with corresponding names.
I am using Tweens to fade-out and -in content to the gallery when a button is pressed.
Loading the SWFs was working until I tried to create a universal button function for the dispatchEvent buttons...
The problem I have is that I don't know how to define the String to tell the newSWFRequest where to find the SWF when triggered by the external buttons.
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My code triggers the Event and the gallery loader fades out, but then it cannot find the new SWF:
Error #2044: Unhandled IOErrorEvent:. text=Error #2035: URL Not Found.
Please can someone help me understand the way to make the String point in the right direction? (I think the only errors are in bold below)
Code:
var myTweenIn2:Tween;
var myTweenOut2:Tween;
var nextLoadS2:String;
// Listen for external event dispatched from external btns
addEventListener("contactStage", btnClickExtrnl);
function btnClickExtrnl(e:Event):void {
nextLoadS2 = ?????
myTweenOut2=new Tween(gallery,"alpha",None.easeOut,gallery.alpha,0,0.2,true);
myTweenOut2.addEventListener(TweenEvent.MOTION_FINISH,tweenOutCompleteF2);
// Btns Universal function
function tweenOutCompleteF2(e:TweenEvent){
myTweenOut2.removeEventListener(TweenEvent.MOTION_FINISH,tweenOutCompleteF2);
myTweenOut2=null;
    var newSWFRequest:URLRequest = new URLRequest("swfs/" + nextLoadS2 + ".swf");
myTweenIn2 = new Tween(gallery, "alpha", None.easeOut, gallery.alpha, 1, 0.2, true);
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Thank you.

That works – thank you!
I'm now using this code to fade in each of the SWFs:
function contactStage(e:MouseEvent):void {
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But I cannot add the fade out function. I have amended the above code to create:
var myTweenOutX:Tween;
var myTweenInX:Tween;
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But get this error:
ReferenceError: Error #1069: Property name not found on fl.transitions.Tween and there is no default value.
at ACOUSTIC_fla::MainTimeline/tweenOutCompleteFX()[ACOUSTIC_fla.MainTimeline::frame1:110]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at fl.transitions::Tween/set time()
at fl.transitions::Tween/nextFrame()
at fl.transitions::Tween/onEnterFrame()
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I'm doing the same thing now in AS2 but don't know what to write instead of event.target.name.
And so at the moment each button pushes info into an array and then a function uses that to decide which movieclip to attach to a holder after it has faded out once, and then fades in again...
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nextLoad.push("img1");
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nextLoad.pop();
nextLoad.push("img0");
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Is there a cleaner way of doing this using event.target.name?
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There is no event.target in AS2. However since AS2 has no way of remembering the scope object where the target object resides, you can use this to your advantage to retrieve the name of the target by using the "this" command in the function whenever you use the above format "mc.onPress = myfunc". FYI, the popular workaround Delegate, made it possible that when you called "this" in the function, you could retrieve the scope object where the target instance resides. So without its use, "this" will return the name of the target object. Anyway this is the code you can use:
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How to check event.target type in "if" statement

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