GAntt chart development tools

can any one pls suggest atool to generate gantt chart suitable for rails
application

Is there anyone with the suggestion? I also need it.

Use highcharts.js

refer -

http://forum.highcharts.com/viewtopic.php?f=9&t=19043

https://highcharts.uservoice.com/forums/55896-general/suggestions/804783-gantt-chart