var flashvars;
var attributes;
var params = { swliveconnect:"true", wmode:"transparent"};

// Abwechselnd verschiedene Filme zeigen (Zufallswert pendelt zwischen 0 und 100):
var rnd = Math.ceil(Math.random() * 4);
switch (rnd)
{
  case 1:
    swfobject.embedSWF("swf/banner1.swf", "mediacontainer", "980", "270", "8.0.0", "expressInstall.swf", flashvars, params, attributes)
    break;
  case 2:
    swfobject.embedSWF("swf/banner2.swf", "mediacontainer", "980", "270", "8.0.0", "expressInstall.swf", flashvars, params, attributes)
    break;
  default:
    swfobject.embedSWF("swf/banner3.swf", "mediacontainer", "980", "270", "8.0.0", "expressInstall.swf", flashvars, params, attributes)
}