External MovieClip

Hi I have a main swf file, called main.swf

then inside this i use the code

var myLoader:Loader = new Loader();
myLoader.load(new URLRequest(“home.swf”));
addChild(myLoader);

to load an external swf called home,

now when im in home.swf i want to use a button to access the myLoader in the main.swf

any help please?

function contact(event:MouseEvent):void
{
this.myLoader.load(new URLRequest(“contact.swf”));
}

this accesses the property inside the main.swf itself
but i want to access it from the home.swf

help please!

anyone?

i need to be able to change what swf is being show on the main swf by a button on the loaded swf?!