.week {border:1px solid #C0C0C0; font-size: 10px; color: #000080; background-image: 
               url('../../belegungs/images/week.gif'); background-repeat: repeat-x}
.bunka       { border: 1px solid #C0C0C0 }
.bel_month {font-size: 10px; color: #FFFFFF; font-weight: bold; background-image: 
               url('../../belegungs/images/month.gif'); background-repeat: repeat-x}
.obs    { border:1px solid #C0C0C0; background-image:url('../../belegungs/images/obs.gif'); background-repeat:repeat-x }
.frei        { border:1px solid #C0C0C0; background-image:url('../../belegungs/images/frei.gif'); background-repeat:repeat-x }
.obs_frei {border:1px solid #C0C0C0; background-image: url('../../belegungs/images/obs-frei.gif'); background-repeat: no-repeat}
.frei_obs {border:1px solid #C0C0C0; background-image: url('../../belegungs/images/frei-obs.gif'); background-repeat: no-repeat}
.old_day     { font-size:10px; color:#808080 }
.akt_day     { font-size: 10px; color: #990000; font-weight: bold }
.day         { font-size: 10px; color: #000000 }
.hid_day     { font-size: 10px; visibility: hidden }