anchor.diff:      streetViewControl: false,
       overviewMapControl: false,
       scrollwheel: false,
  -    center: ZOOMS[HeatMap.state.viewing].center,
  -    zoom: ZOOMS[HeatMap.state.viewing].zoom
  +    center: ZOOMS[HeatMap.state.view].center,
  +    zoom: ZOOMS[HeatMap.state.view].zoom
     };
   
     function update_bounds() {
  -    if (!HeatMap.state.dirty) {
  +    if (!HeatMap.dirty) {
         return;
       }
  -    HeatMap.state.dirty = false;
  +    HeatMap.dirty = false;
       HeatMap.state.bounds[0] = map.getBounds().getSouthWest().lat();
       HeatMap.state.bounds[1] = map.getBounds().getSouthWest().lng();
       HeatMap.state.bounds[2] = map.getBounds().getNorthEast().lat();
  
positive.code: <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
  <script>
    HeatMap = {};
    HeatMap.state = {
      bounds: [0, 0, 0, 0],
      filters: [295,304,5],
      colours: [[255,0,0],[0,255,0],[0,0,255]],
      dirty: false,
      viewing: "Australia"
    };
    HeatMap.instances = [];
  
    ZOOMS = {
      "Australia": {
  
negative.code:   }
  
    function redraw_heatmaps() {
      localStorage.heatmap = JSON.stringify(HeatMap.state);
      if (HeatMap.state.filters.length > 0) {
        params = {
          bounds: HeatMap.state.bounds,
          filters: _.map(HeatMap.state.filters, function(f){ return f.id; })
        };
        $.getJSON("heatmaps/points", params, function(data){
          HeatMap.points = data;
          display_heatmaps();
        });
        $.getJSON("heatmaps/comments", params, function(data){
          HeatMap.comments = data;
          display_comments();
        });
  