+1 for Highcharts. We use it at MyEdu, switched away from Fusioncharts. I've had to write some workarounds for the occasional bug, but the maintainer is incredi

+1 for Highcharts. We use it at MyEdu, switched away from Fusioncharts. I've had to write some workarounds for the occasional bug, but the maintainer is incredibly responsive to feedback, so drop a comment on GitHub or the Highslide forum if you run into an issue.