Loading different SWFs in the same container

1

i have main swf that loads external swf, here is the main FLA.
the animation begins and stop at frame 71:
frame 71: there is empty movie clip with instance name container, this code in frame 1:
ActionScript Code:
[LEFT][COLOR=#000000]var[/COLOR] currMovie:[COLOR=#0000FF]String[/COLOR] = [COLOR=#FF0000]“section1”[/COLOR];
[COLOR=#000000]var[/COLOR] containerLoader:Loader = [COLOR=#000000]new[/COLOR] LoaderCOLOR=#000000[/COLOR];
containerLoader.[COLOR=#0000FF]load[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000]new[/COLOR] URLRequestCOLOR=#000000[/COLOR][COLOR=#000000])[/COLOR];
container.[COLOR=#000080]addChild[/COLOR]COLOR=#000000[/COLOR];

menu_mc.[COLOR=#000080]b1_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menu_mc.[COLOR=#000080]b2_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menu_mc.[COLOR=#000080]b3_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menu_mc.[COLOR=#000080]b4_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menu_mc.[COLOR=#000080]b5_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menu_mc.[COLOR=#000080]b6_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];

[COLOR=#000000]function[/COLOR] secClickedCOLOR=#000000[/COLOR] [COLOR=#000000]{[/COLOR]
[COLOR=#0000FF]if[/COLOR] [COLOR=#000000]([/COLOR]currMovie != secStr[COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
[COLOR=#0000FF]if[/COLOR] [COLOR=#000000]([/COLOR]containerLoader.[COLOR=#000080]content[/COLOR].[COLOR=#000080]currentFrame[/COLOR] >= containerLoader.[COLOR=#000080]content[/COLOR].[COLOR=#000080]midframe[/COLOR][COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
currMovie = secStr;
containerLoader.[COLOR=#000080]content[/COLOR].[COLOR=#0000FF]play[/COLOR]COLOR=#000000[/COLOR];
[COLOR=#000000]}[/COLOR]
[COLOR=#000000]}[/COLOR]
[COLOR=#000000]}[/COLOR]

[COLOR=#000000]function[/COLOR] loadSectionCOLOR=#000000[/COLOR] [COLOR=#000000]{[/COLOR]
containerLoader.[COLOR=#000080]unload[/COLOR]COLOR=#000000[/COLOR];
containerLoader.[COLOR=#0000FF]load[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000]new[/COLOR] URLRequestCOLOR=#000000[/COLOR][COLOR=#000000])[/COLOR];
event.[COLOR=#0000FF]target[/COLOR].[COLOR=#000080]mouseEnabled[/COLOR] = [COLOR=#000000]false[/COLOR];
[COLOR=#000000]}[/COLOR]
[/LEFT]

and there is button with instance name “kids”, when i click it tells the main timelime to play.

frame 90: there is code that remove the current loaded swf:
ActionScript Code:
[LEFT]container.[COLOR=#000080]removeChild[/COLOR]COLOR=#000000[/COLOR];
[/LEFT]

frame 90: it loades kids sections
ActionScript Code:
[LEFT][COLOR=#0000FF]stop[/COLOR]COLOR=#000000[/COLOR]
menuEng_mc.[COLOR=#000080]main_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR][COLOR=#000000]([/COLOR]MouseEvent.[COLOR=#000080]CLICK[/COLOR], openMenuIn2[COLOR=#000000])[/COLOR];
[COLOR=#000000]function[/COLOR] openMenuIn2COLOR=#000000[/COLOR]:[COLOR=#0000FF]void[/COLOR] [COLOR=#000000]{[/COLOR]
menuEng_mc.[COLOR=#0000FF]gotoAndPlay[/COLOR]COLOR=#000000[/COLOR];
[COLOR=#000000]}[/COLOR]

[COLOR=#000000]var[/COLOR] currMovie2:[COLOR=#0000FF]String[/COLOR] = [COLOR=#FF0000]“sec1”[/COLOR];
[COLOR=#000000]var[/COLOR] containerLoader2:Loader = [COLOR=#000000]new[/COLOR] LoaderCOLOR=#000000[/COLOR];
containerLoader2.[COLOR=#0000FF]load[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000]new[/COLOR] URLRequestCOLOR=#000000[/COLOR][COLOR=#000000])[/COLOR];
container.[COLOR=#000080]addChild[/COLOR]COLOR=#000000[/COLOR];

menuEng_mc.[COLOR=#000080]b1_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menuEng_mc.[COLOR=#000080]b2_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menuEng_mc.[COLOR=#000080]b3_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menuEng_mc.[COLOR=#000080]b4_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menuEng_mc.[COLOR=#000080]b5_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];
menuEng_mc.[COLOR=#000080]b6_btn[/COLOR].[COLOR=#000080]addEventListener[/COLOR]COLOR=#000000[/COLOR];

[COLOR=#000000]function[/COLOR] secClicked2COLOR=#000000[/COLOR] [COLOR=#000000]{[/COLOR]
[COLOR=#0000FF]if[/COLOR] [COLOR=#000000]([/COLOR]currMovie2 != secStr[COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
[COLOR=#0000FF]if[/COLOR] [COLOR=#000000]([/COLOR]containerLoader2.[COLOR=#000080]content[/COLOR].[COLOR=#000080]currentFrame[/COLOR] >= containerLoader2.[COLOR=#000080]content[/COLOR].[COLOR=#000080]midframe[/COLOR][COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
currMovie2 = secStr;
containerLoader2.[COLOR=#000080]content[/COLOR].[COLOR=#0000FF]play[/COLOR]COLOR=#000000[/COLOR];
[COLOR=#000000]}[/COLOR]
[COLOR=#000000]}[/COLOR]
[COLOR=#000000]}[/COLOR]

[COLOR=#000000]function[/COLOR] loadSection2COLOR=#000000[/COLOR] [COLOR=#000000]{[/COLOR]
containerLoader2.[COLOR=#000080]unload[/COLOR]COLOR=#000000[/COLOR];
containerLoader2.[COLOR=#0000FF]load[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000]new[/COLOR] URLRequestCOLOR=#000000[/COLOR][COLOR=#000000])[/COLOR];
event.[COLOR=#0000FF]target[/COLOR].[COLOR=#000080]mouseEnabled[/COLOR] = [COLOR=#000000]false[/COLOR];
[COLOR=#000000]}[/COLOR]
[/LEFT]

at this point, it loads sec1.swf, but when i click to load other swf, it will not respond.

any help