Removing Movie Clip using RemoveChild Help

hi, im new forum, , new actionscript 3.

i'm wondering, how can remove movieclip doesnt stack when click button.

sh1.png

btn 1 opens movieclip addchild

s2.png

btn 2 opens 2nd movieclip stacks in front , , first movieclip isnt removed

s3.png

as linkage of movieclip can bring stage.

my code

thumbnail1.addeventlistener(mouseevent.click ,mythumb1);

function mythumb1(evt:mouseevent):void

{

var mymc:hover1 = new hover1();

container.addchild(mymc);

if(contains(mymc))

{

container.removechild(mymc)

}

}

thumbnail2.addeventlistener(mouseevent.click ,mythumb2);

function mythumb2(evt:mouseevent):void

{

var mymc2:hover2 = new hover2();

container.addchild(mymc2);

}

by declaring vars inside function, remove ability target them directly name outside of function.  1 way deal declare mymc1 , mymc2 outside of functions every function can target them.

 

an alternative approach empty container out before adding children using removechildat() method (you need check there children within remove beforehand)

 

for code show, mythumb1 function isn't going since adding mymc1 , removing after

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