I am defining a chart in action script and wonder how to get define which
series gets displayed on top of the other. For example, take a chart with 2
vertical Axes sharing the x axis for dates. Y1 is a line and gets defined
first and added to the seriesArray (an Array), then Y2 is a column series and
gets defined and added to the seriesArray. Then:

myChart.series = seriesArray.toArray();

But I really want the column displayed behind the line. Is there anyway to do
this other than adding the axes to the array in reverse order?