The demo is using a Third-party API to store and supply the animated iFrame Graph. I would like to be able to populate my own animated graph from an existing database table.
d3 is the the go to for data vis in JavaScript, but it’s low level meaning you need to manually manipulate DOM based on the data. http://alignedleft.com/tutorials/d3 is a great intro to d3, after scatter plot it’s a quick jump to a line graph.
That page you linked to is using HighCharts, that’s a good option if you’re simply after canned charts and the docs are pretty good.