I have an application that retrieves graph data from a database in Columbia.  Here is how it works.

When the user clicks the plot button, I clear the series of the graph and request data from the database to plot the new graph.  When this happens, the default bar graph shows up.  As you can imagine, the connection to Columbia is slow, so that default bar graph shows up for 30 seconds or so until the data table comes in.

I would like to display a blank graph background when there are no series present.  Is there a way to do that?  If so, how?