Trying to embed javascript charts isn't really worth the trouble IMO, I have tried it. If you haven't seen it, this was the best article I found on subject :http://thinknook.com/running-highcharts-within-ssrs-or-any-js-graph-library-2013-01-22/

If you are looking for a wider range of charts, for free, the R graph integration module is excellent https://rgraphicsdevice.codeplex.com/ however it only renders charts as an image - so no interactivity.

If you want to add interactivity and transitions etc Reporting Services is not the tool to be using and you should look into solutions built for that sort of analysis e.g. PowerBI