.back5 { background-attachment: fixed; background-color: #FFFFFF; background-image: url(back5.jpg); background-repeat: repeat-x }
.back3 { background-attachment: fixed; background-color: #FFFFFF; background-image: url(back3.gif); background-repeat: repeat-y }
.back4 { background-attachment: fixed; background-image: url(back4.gif); background-repeat: no-repeat; background-position: left bottom }
.back1 { background-attachment: fixed; background-color: #FFFFFF; background-image: url(back1.gif); background-repeat: repeat-x }
.back7 {  background-attachment: fixed; background-color: #FFFFFF; background-image: url(back7.gif); background-repeat: no-repeat; background-position: left bottom}