function getRanfom(files) {
    if (typeof files != "object") {
        throw "Files non è un array"

    }
    var file = null;
    for(;;) {
        var random = Math.random() * 12;
        random=Math.floor(random);
        file = files[random];
        if (file != null) {
            return random;
        }
    }
}

function randomFlash() {
    var FLASH = "<object id=\"marchi01\" classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"142\" height=\"76\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0\" align=\"middle\">\n";
        FLASH += "	<param name=\"allowScriptAccess\" value=\"sameDomain\" />\n";
        FLASH += "	<param name=\"allowFullScreen\" value=\"false\" />\n";
        FLASH += "	<param name=\"movie\" value=\"/smallsites/azienda/otticadini/swf/#FILE#.swf\" />\n";
        FLASH += "	<param name=\"quality\" value=\"high\" />\n";
        FLASH += "	<param name=\"wmode\" value=\"transparent\" /> <embed type=\"application/x-shockwave-flash\" width=\"142\" height=\"76\" src=\"/smallsites/azienda/otticadini/swf/#FILE1#.swf\" quality=\"high\" wmode=\"transparent\" name=\"#FILE2#\" allowscriptaccess=\"sameDomain\" allowfullscreen=\"false\" pluginspage=\"http://www.macromedia.com/go/getflashplayer\" align=\"middle\"></embed>\n";
        FLASH += "</object>\n";

    var files = new Array(
      "marchi01",
      "marchi02",
      "marchi03",
      "marchi04",
      "marchi05",
      "marchi06",
      "marchi07",
      "marchi08",
      "marchi09",
      "marchi10",
      "marchi11",
      "marchi12"
    );
    var ret = "<div class=\"titoli_box\">I nostri Marchi</div>";
    for (var i = 0; i < 6; i++) {
        var random = getRanfom(files);
        var obj = FLASH.replace("#FILE#", files[random]);
        obj = obj.replace("#FILE1#", files[random]);
        obj = obj.replace("#FILE2#", files[random]);
        ret += obj;
        files[random] = null;
    }
    document.getElementById("marchi").innerHTML = ret;
}