function defaultCalendar() {
   var value = new Date();
   var month = value.getMonth() + 1;
   var year  = value.getYear();
   if (year == 2009) {
      month = month + 3;
   }
   if (year == 109) {
      month = month + 3;
   }
   document.getElementById(""+month).style.display='block';
}

function hideAllCalendars() {
   for (count=1; count< 16; count+=1)
      document.getElementById(''+count).style.display='none';
}

function showCalendar(month) {
   document.getElementById(month).style.display='block';
}

function showTip(tipValue) {
   document.getElementById(tipValue).style.display='block';
}