[flexcoders] decrementing scale/values on LinearAxis

Can someone tell me how to reverse the scale on a linear axis so that it decrements rather then increments. ie, if my x values are 0 to 10 on the x-axis i want the x scale to show 10 to 0. I am trying to do this on a plot chart.

[flexcoders] decrementing the x axis on a chart

Can someone tell me how to to reverse the scale on an axis in flex so that it decrements rather then increments. ie, if my x values are 0 to 10 on the x-axis i want the x scale to show 10 to 0.