clearscene does not reset everthing. If you have a function in the setTimeout it continues to run.

Also there is a strange problem with variables. When testing var myduration = 2; if I change myduration to 4. It does not change. when working with this code.

this.startTimer = function()     
{
            console.log('in realtimer');

    var start = Date.now();
      var duration = 60 * this.mydur;
           console.log("not updating"+ this.mydur);
      
      var mytimer = function()
      {
           var diff;
            var minutes;
            var seconds;
            // get the number of seconds that have elapsed since 
            // startTimer() was called
            diff = duration - (((Date.now() - start) / 1000) | 0);

            // does the same job as parseInt truncates the float
            minutes = (diff / 60) | 0;
            seconds = (diff % 60) | 0;

            minutes = minutes < 10 ? "0" + minutes : minutes;
            seconds = seconds < 10 ? "0" + seconds : seconds;

            _.TimerValue.getSprite().setText(minutes + "W"+this.mydur+"W:" + seconds); 

            if (diff <= 0) 
            {
            // add one second so that the count down starts at the full duration
            // example 05:00 not 04:59
                this.myrunning = false;
            }else
            {
                setTimeout(mytimer, 1000);
            }
            
        }
        mytimer();
    
    };

when I close the browser and restart it, I had to go back and change the actual variable name to refresh the value. I can not think when that happens at all. You can see I had to go to mydur to use a new value.