Generating graphs on-the-fly with JavaScript with mouseover "captions"
<p>I am developing a backend that requires to have graphs with information associated in a javascript why. The idea is to reproduce something similar to Google Analytics/Webmaster Tools:</p>

<p><img src="http://i.stack.imgur.com/qFfXd.png" alt="example of graph"> </p>

<p>I also like to reproduce the "hover" caption when someone moves throw the days.</p>

<p>Does anybody knows if this is possible to do it with JavaScript? It's not allowed to use jQuery, so no "use jQuery" replies please.</p>

<p>Thank you in advance</p>
