Change the color of line in line chart

[Arun]

Hi,
I have drawn a line chart that changes dynamically. It is actually a
speed time graph. I want to change the color of the line in line chart
when the speed is more than 60. How can i change the color of the line
in line chart dynamically.

Regards
Arun

[MC Get Vizzy]

I think the only way to do it is to draw more than one line.  it other words, write javascript code that puts the values into different columns, and then draw a line for each column, making the lines different colors.