function getFlashMovieObject(movieName){
  if (window.document[movieName]) 
  {
      return window.document[movieName];
  }
  if (navigator.appName.indexOf("Microsoft Internet")==-1)
  {
    if (document.embeds && document.embeds[movieName])
      return document.embeds[movieName]; 
  }
  else // if (navigator.appName.indexOf("Microsoft Internet")!=-1)
  {
    return document.getElementById(movieName);
  }
}

function SendDataToFlashMovie(what){
     var flashMovie=getFlashMovieObject("hubhornby");
     flashMovie.SetVariable("/:movie2play", what);
}