Drawing points on a three colored chart region
 

Hi guys,

I need to create a chart that shows a group of points, like:
Axis x goes from 0.0% to 100%
Axis y goes from 0.0% to 500%
Point 1: x=5% y=30%
Point 2: x=15% y=22%
Point 3: x=25% y=75%
Point 4: x=50% y=25%
Point 5: x=60% y=80%
This is easy to do in Excel, the problem is that I have to paint the chart
region in three different colors, green, yellow and red in order to show to
the user how critical is each point (depending on the color€¦).
I must let the user to decide the limits of the region of each color.
Is there any chance to achieve that in Excel?

Thanks in advance for any help,
Aldo.