#left{
background-image:url("images/back_l_low.png");
background-repeat:no-repeat;
background-attachment:fixed;
background-position:left bottom;
height:100%;width:100%;
position:fixed;
left:0;bottom:0;
}
#left_top{
background-image:url("images/back_l_top.png");
background-repeat:no-repeat;
background-attachment:fixed;
background-position:left top;
height:100%;width:100%;
position:fixed;
left:0;top:0;
}
#right{
background-image:url("images/back_r_low.png");
background-repeat:no-repeat;
background-attachment:fixed;
background-position:right bottom;
height:100%;width:100%;
position:fixed;
right:0;bottom:0;
}
#right_top{
background-image:url("images/back_r_top.png");
background-repeat:no-repeat;
background-attachment:fixed;
background-position:right top;
height:100%;width:100%;
position:fixed;
right:0;top:0;
}
#container { position:relative; z-index: 10; }