code: function(ctx) {
  				var tree = ctx.tree,
  					opts = tree.options;
  
  				//this.debug("Fancytree.treeInit()");
  				// Add container to the TAB chain
  				// See http://www.w3.org/TR/wai-aria-practices/#focus_activedescendant
  				// #577: Allow to set tabindex to "0", "-1" and ""
  				tree.$container.attr("tabindex", opts.tabindex);
  
  				// Copy some attributes to tree.data
  				$.each(TREE_ATTRS, function(i, attr) {
  					if (opts[attr] !== undefined) {
  						tree.info("Move option " + attr + " to tree");
  						tree[attr] = opts[attr];
  						delete opts[attr];
  					}
  				});
  
  				if (opts.rtl) {
  					tree.$container
  						.attr("DIR", "RTL")
  						.addClass("fancytree-rtl");
  				} else {
  					tree.$container
  						.removeAttr("DIR")
  						.removeClass("fancytree-rtl");
  				}
  				if (opts.aria) {
  					tree.$container.attr("role", "tree");
  					if (opts.selectMode !== 1) {
  						tree.$container.attr("aria-multiselectable", true);
  					}
  				}
  				this.treeLoad(ctx);
  			}
docs: Widget was (re-)initialized.
  @param {EventData} ctx