var scalePhotos;

function scaleIt(v) {

  if(scalePhotos == null){scalePhotos = document.getElementsByClassName('scale-image');}
  // Remap the 0-1 scale to fit the desired range
  floorSize = .26;
  ceilingSize = 1.0;
  v = floorSize + (v * (ceilingSize - floorSize));

  for (i=0; i < scalePhotos.length; i++) {
    scalePhotos[i].style.width = (v*695)+"px";
  }
}

var demoSlider = new Control.Slider('handle1','track1', {axis:'horizontal',minimum:0,maximum:200,sliderValue:1,alignX:2,increment:2});

demoSlider.options.onSlide = function(value){
  scaleIt(value);
}
demoSlider.options.onChange = function(value){
  scaleIt(value);
}

function setSlider( value ){
   demoSlider.setValue(value);
}  // setslider