You can download and use ArcadiaCharts for free even for commercial use on a “give and take” basis. In return for the free use we ask you for a link back to our website (http://www.arcadiacharts.com) on the page displaying the chart.
A dedicated div is needed anyway as a target for rendering your chart:
<div id="chart"></div>
We recommend using this div for an unobtrusive way of backlinking to our site. The content of this div will be replaced by the chart, so you don´t annoy your visitors with the link and it meets the criteria for free usage according to our “give and take”-agreement.
<div id="chart"> <p>Interactive JavaScript Charts: <a href="http://www.arcadiacharts.com/">www.arcadiacharts.com</a></p> </div>
Feel free to copy and paste this code into your charts.