Give instance name at runtime

1

how do you give a movieclip an instance name @ runtime, because I’m putting the movieclip into a container and want to be to load it and tell
to go to a certain frame in the clip


this.onRelease = function(){
	loadMovie("mod_version.swf" "displaycase",this._parent.icon_placeholder);
	displaycase.gotoAndPlay(56);

please help.