function playGame(swf_url, swf_width, swf_height) {
  document.write('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="'+swf_width+'" height="'+swf_height+'">');
  document.write('<param name="movie" value="'+swf_url+'">');
  document.write('<param name="quality" value="high">');
  document.write('<param name="wmode" value="transparent">');
  document.write('<embed src="'+swf_url+'" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="'+swf_width+'" height="'+swf_height+'"></embed>');
  document.write('</object>');
}