code: function(el, data, options, GraphKlass){  
      GraphKlass = GraphKlass || Flotr.Graph;
      return new GraphKlass(el, data, options);
    }
docs: Draws the graph. This function is here for backwards compatibility with Flotr version 0.1.0alpha.
  You could also draw graphs by directly calling Flotr.Graph(element, data, options).
  @param {Element} el - element to insert the graph into
  @param {Object} data - an array or object of dataseries
  @param {Object} options - an object containing options
  @param {Class} _GraphKlass_ - (optional) Class to pass the arguments to, defaults to Flotr.Graph
  @return {Object} returns a new graph object and of course draws the graph.