code: function(method, a, b, c, d, e) {
          var node = this._node,
              ret;
  
          if (a && a instanceof Y_Node) {
              a = a._node;
          }
  
          if (b && b instanceof Y_Node) {
              b = b._node;
          }
  
          ret = node[method](a, b, c, d, e);    
          return Y_Node.scrubVal(ret, this);
      }
docs: Invokes a method on the Node instance
  @method invoke
  @param {String} method The name of the method to invoke
  @param {Any}  a, b, c, etc. Arguments to invoke the method with.
  @return Whatever the underly method returns.
  DOM Nodes and Collections return values
  are converted to Node/NodeList instances.