chart.resetColors() - Reset the default color when a new series is added

I needed the ability to reset the default color when a new series is added because I'm using AJAX to dynamically add and remove charts. I noticed someone else wanted the same feature: http://highslide.com/forum/viewtopic.php?f=9&t=8725&start=0&st=0&sk=t&sd=a&hilit=reset+color