var th=8;
 var tm=17;
var ts=8;
var td=6;
var tn=0;
var tk=0;

function show_timer() {
  if(ts<0) {
    ts=59;
    tm--;
    if(tm<0) {
      tm=59;
      th--;
      if(th<0) {
        if(tn==1) {
          tn=0;
          th=10;
        }
        else {
          tn=1;
          td==5?th=62:th=14;
        }
        change_timer();
      }
    }
  }
  var st=(th<10?"0"+th:th)+":"+(tm<10?"0"+tm:tm)+":"+(ts<10?"0"+ts:ts);
  if($('timer_openclose')) $('timer_openclose').innerHTML=st;
  ts--;
  setTimeout('show_timer()',1000);
}

function init_timer() {
  if(td>5) {
    tn=1;
    td==6?tk=58:tk=34;
  }
  else if(th<9) {
    tn=0;
    tk=9;
  }
  else if(th<19) {
    tn=0;
    tk=19;
  }
  else {
    tn=1;
    td==5?tk=82:tk=34;
  }
  th=tk-th;
  ts<60?tm--:ts=0;
  tm<60?th--:tm=0;
  change_timer();
  show_timer();
}

function change_timer() {
  if(tn==0) {
    if($('timer_color')) $('timer_color').style.color="green";
    if($('timer_on')) $('timer_on').style.display="none";
    if($('timer_off')) $('timer_off').style.display="inline";
  }
  else {
    if($('timer_color')) $('timer_color').style.color="grey";
    if($('timer_on')) $('timer_on').style.display="inline";
    if($('timer_off')) $('timer_off').style.display="none";
  }
}