rand = Math.floor(Math.random() * 10000); 
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="540" height="207">');
document.write('<param name="movie" value="top.swf?'+rand+'">');
document.write('<param name="quality" value="high" />');
document.write('<embed src="top.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="540" height="207"></embed></object>');