var timerID = 0;

function UpdateTimer() {
   if(timerID) {
      clearTimeout(timerID);
      clockID  = 0;
   }
   document.ticketForm.timer.value = Math.round((parseFloat(document.ticketForm.timer.value) + .01*1.67)*100)/100;
   
   timerID = setTimeout("UpdateTimer()", 1000);
}

function Start() {
   if (document.ticketForm.timer.value == "")
   	document.ticketForm.timer.value = "0.0";
   else
 	document.ticketForm.timer.value = document.ticketForm.timer.value

   timerID  = setTimeout("UpdateTimer()", 1000);
}

function Stop() {
   if(timerID) {
      clearTimeout(timerID);
      timerID  = 0;
   }
}