table.rahmen td.mitte {
background: white;
}
table.rahmen td.mu {
background-image : url(../img/mu.gif);
background-repeat : repeat-x;
}
table.rahmen td.mo {
background-image : url(../img/mo.gif);
background-repeat : repeat-x;
}
table.rahmen td.l {
background-image : url(../img/l.gif);
background-repeat : repeat-y;
}
table.rahmen td.sr {
background-image : url(../img/sr.gif);
background-repeat : repeat-y;
}
table.rahmen td.su {
background-image : url(../img/su.gif);
background-repeat : repeat-x;
}
table.rahmen td.ro {
background-image : url(../img/ro.gif);
background-repeat : no-repeat;
}
table.rahmen td.ru {
background-image : url(../img/ru.gif);
background-repeat : no-repeat;
}
table.rahmen td.lo {
background-image : url(../img/lo.gif);
background-repeat : no-repeat;
}
table.rahmen td.lu {
background-image : url(../img/lu.gif);
background-repeat : no-repeat;
}

table.submenu_rahmen {
position:relative; 
top:10px;
left:20px;
}

table.submenu_rahmen td.sub_lo {
border-right: 1px solid black;
border-bottom: 1px solid black;
}
table.submenu_rahmen td.sub_mo {
border-bottom: 1px solid black;
}
table.submenu_rahmen td.sub_ro {
border-left: 1px solid black;
border-bottom: 1px solid black;
}

table.submenu_rahmen td.sub_l {
border-right: 1px solid black;
}
table.submenu_rahmen td.sub_r {
border-left: 1px solid black;
}

table.submenu_rahmen td.sub_lu {
border-right: 1px solid black;
border-top: 1px solid black;
}
table.submenu_rahmen td.sub_mu {
border-top: 1px solid black;
}
table.submenu_rahmen td.sub_ru {
border-left: 1px solid black;
border-top: 1px solid black;
}