title: javascript graphing library
body: <p>I'm looking for a nice graphing library for JavaScript that can handle the following types of graphs:</p>
  
  <ul>
  <li>Line Graphs</li>
  <li>Histograms</li>
  <li>Scatterplots</li>
  <li>Motion Charts</li>
  </ul>
  
  <p>I've tried Google's Chart Tools but they don't seem to have a nice histogram chart (nor can I get their motion chart to work properly, even served off my Apache web server).  </p>
  
  <p>I'm hoping that there's a decent library out there that can support all of these, however if I must, I may include 2 different libraries (looking at Google Chart Tools, gRafael, flotr, and rgraph right now - none of which seem to include ALL of the requirements I have).</p>