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

function playSong(trackid)
{
	var flashMovie=getFlashMovieObject("guidiplayer");
	flashMovie.SetVariable("/:loadtrack", 1);
	flashMovie.SetVariable("/:track_id", trackid);
	
}