* html .wrapper-bottom{
    background:url(images/transparent.gif) fixed;
    filter:progid:dximagetransform.microsoft.alphaimageloader(src='images/bg-wrapper-bottom.png', sizingmethod='crop');
}
* html .wrapper-top{
    background:url(images/transparent.gif) fixed;
    filter:progid:dximagetransform.microsoft.alphaimageloader(src='images/bg-wrapper-top.png', sizingmethod='crop');
}
* html .wrapper-center{
    background:url(images/transparent.gif) fixed;
    filter:progid:dximagetransform.microsoft.alphaimageloader(src='images/bg-wrapper-center.png', sizingmethod='scale');
}