ширина swfoobject

Я хочу изменить ширину объекта SWF; вот код: index.php:

<div id="websiteid">
<script type="text/javascript">
    var flashvars = {};
    var params = {
        quality: "high",
        wmode: "window",
        devicefont: "false",
        allowscriptaccess: "always",
        bgcolor: "#000000",
        allowFullScreen: "true",
        scale: "noScale", 
        salign: "lt", 
        menu: "false"
    };
    var attributes = {
        id: "flash"
    };
    swfobject.embedSWF("template.swf", "websiteid", "520", "600", "9.0.0",
    "expressInstall.swf", flashvars, params, attributes);
</script>

So, I modify the "520" with "800" for example, and if upload on my server nothing is changed, also if I open firebug and modify it it works. What could be the problem ? I've tried also to upload on other server and same issue.