Load external .swf but 'prevent playback' until addchild

1

I load external .swf files by code

ldr[nr][1][j2] = new Loader();
ldr[nr][1][j2].load(urlReq);

and about 3 seconds (by extra Timer script) after they’re completely loaded are added to stage with

obj[nr][1][j2].addChild(ldr[nr][1][j2])

It all works properly, no problems at all.

But by the time the .swf files are added as children to stage they’ve already animated 3 seconds of their own timeline so appear to “not start from the beginning of the animation”.

Any way I can prevent that in a simple way? (without requiring access / editing / recreating the loaded .swf or its .fla files)

any suggestions
t.i.a for ideas
P