function next(value,time) {
                  var nrSlides  = slides.choice.length;
                  var currSlide = slides.whichChoice;
                  var slide     = slides.choice[currSlide];
                  var currLevel = slide.showLevel;
                  var toon = show;
  
                  direction = 'forward';
  
                  if(currLevel+1 >= slide.nrLevels) {
                      if(currSlide+1 >= nrSlides) {
                          level = 0;
                          nextSlide = 0;
                      } else {
                          level = 0;
                          nextSlide = currSlide + 1;
                      }
                      number = nextSlide;
                      slides.choice[nextSlide].showLevel    = 0;
                      id = slides.choice[nextSlide].id;
                      toon = show || slides.choice[nextSlide].show;
                      if (toon) {
                      hideTimeSensor.startTime = time;
                      hideTimeSensor.stopTime  = time + 3;
                      } else { 
                      slides.whichChoice = nextSlide;
                      }
                      update = 1;
                  } else {
                      slide.showLevel = currLevel+1;
                      level = currLevel + 1;
                      update = 2;
                  }
              }