// The timer interface (window message WM_TIMER)
// File: timer.w_js

var cnt = 1; // 
//  Window.SetTimer(id, ms)
    Window.SetTimer(8000, 100); // 100 ms

   function WM_TIMER(id){
   var text = "Timer " + id + " Ticks " + cnt;
   cnt++;
   Window.TextOut(0,50,50,text);
   Window.UpdateWindow(); 
   };