Solve Cache Problems when you Load a Movie

Hi,

I have read this tutorial but I´m new to flash so I would be nice if someone could explain it a little bit more.

Here is the AS:

myIdentifier=Math.round(Math.random()*10000);
loadMovie(“myAnim.swf?uniq=”+myIdentifier,1);

How do I use it? Lets say I have a movie with the name “movie1” and another movie with the name “movie2”. Now I want to load “movie2” into “movie1” in an empty MC with the name “content” when I press a button.

Can some friendly soul help me with the code and tell me were to put it?