.borders {
     background: white url(../images/t.bmp) top repeat-x; 
}
.c1 {
      background: url(../images/r.bmp) right repeat-y; 
}
.c2 {
      background: url(../images/b.bmp) bottom repeat-x; 
}
.c3 {
     background: url(../images/l.bmp) left repeat-y; 
}
.c4  {
      background: url(../images/t-l.bmp) top left no-repeat; 
}
.c5  {
      background: url(../images/t-r.bmp) top right no-repeat; 
}
.c6 {
      background: url(../images/b-r.bmp) bottom right no-repeat; 
}
.c7 {
      background: url(../images/b-l.bmp) bottom left no-repeat; 
}