$(document).ready(function () {
    var swfs = new Array('spot-supercopa','banner300x250');
    var rand = Math.floor(Math.random()*2);
    $('#spot').flash({
        swf: '/swf/'+swfs[rand]+'.swf',
        //swf: '/swf/banner300x250.swf',
        width: 300,
        height: 250
    });
});