and NP
<style type="text/css">
object {
position :absolute;
left :50%;
top :50%;
margin-top :-200px;
margin-left :-250px;
}
</style>
<body>
<object type="application/x-shockwave-flash" data="movie.swf" width="500" height="400">
<param name="flash_component" value="ImageViewer.swc">
<param name="movie" value="movie.swf">
</object>
</body>