code: function(){
  			this._cursor = null;
  			this._prevCursor = null;
  			this.root = null;
  			//By default the cursor is pointed to the first child 
  			if(this.firstLevelChildren.length > 0){
  				this._cursor = this.firstLevelChildren[0];
  				this.root = this.firstLevelChildren[0].parent;
  			}
  		}
docs: Reset cursor and previous cursor