In the next version (probably 2.1), alignment will be supported as a part of the resizing logic. Then you can add an image to the chart in thechart.load event.
That's only possible for pies for now, but the feature could be adapted for at least column series. I'll keep this idea open for now.
Do we need specific methods for this? It doesn't require much code to loop over chart.series and select or deselect all of them with the current API.