code: function ImageNode(src, func, inBrowserCache) {
                  this.loaded = undefined;
                  this.loading = true;
  
                  if (!inBrowserCache) {
                      this.node = new Image();
                      this.bind(func);
                      this.node.src = src;
                  }
                  else {
                      this.__onload(func, true);
                  }
  
              }
docs: ********* Constructors ***********