Simple howto:
There are two ways of using Simple Burndown Chart Generator.
1. If just a simple burndown chart with "Ideal" line is needed, just enter values and push "Generate chart" button
2. If an "Actual" line is needed:
- Enter starting values
- Push "Generate config file"
- Edit config file with "Actual" values
- Each time you want to generate a new chart, just select your config file and push "Generate chart" button
Get the source code here