U.Helper

img.класс_картинки_слева {
position:fixed;
z-index:0;
top:0px;
left:0px;
width:100px;
height:100%;
}

img.класс_картинки_справа {
position:fixed;
z-index:0;
top:0px;
right:0px;
width:100px;
height:100%;
}

.bg_l {background:transparent url(/img/bg_l.gif) no-repeat left top;background-attachment: fixed;}
.bg_r {background:transparent url(/img/bg_r.gif) no-repeat right top;background-attachment: fixed;}