78     node.left = this.root_;
83     node.left = this.root_.left;
84     this.root_.left = null;
107   if (!this.root_.left) {
111     this.root_ = this.root_.left;
168   } else if (this.root_.left) {
169     return this.findMax(this.root_.left);
207   var dummy, left, right;
208   dummy = left = right = new SplayTree.Node(null, null);
212       if (!current.left) {
215       if (key < current.left.key) {
217         var tmp = current.left;
218         current.left = tmp.right;
221         if (!current.left) {
226       right.left = current;
228       current = current.left;
236         current.right = tmp.left;
237         tmp.left = current;
244       left.right = current;
245       left = current;
252   left.right = current.left;
253   right.left = current.right;
254   current.left = dummy.right;
255   current.right = dummy.left;
275 SplayTree.Node.prototype.left = null;  method in SplayTree.Node
294     var left = current.left;
295     if (left) left.traverse_(f);
312       var l = n.left;