// <script src="flash.js">
 flash = new Array(4);
 flash[0] = 'top.swf';
 flash[1] = 'top1.swf';
 flash[2] = 'top2.swf';
 flash[3] = 'top3.swf';
 
 index = Math.floor(Math.random() * flash.length);
 name = flash[index];
 code = '<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="455" height="90">' +
        '<param name="movie" value="' +name+ '">' +
        '<param name="quality" value="high">' +
        '<embed src="' + name+ '" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="455" height="90"></embed></object>';

document.write(code);