title: Charting library that does not cause memory leak when updating chart
body: <p>I want to build a page with interactively refreshing charts based on the data that is being fetched from the server asynchronously using AJAX. I really like <a href="http://www.jqplot.com" rel="noreferrer">jqPlot</a>, but when trying to update the graph periodically (by calling <code>replot()</code>, without page refresh), it causes a huge browser memory leak. It seems to be a well known issue occurring on all major browsers.</p>
  
  <p>I haven't tried <a href="http://code.google.com/p/flot" rel="noreferrer">Flot</a> and <a href="http://vis.stanford.edu/protovis" rel="noreferrer">protovis</a>, but quick googling reveals that they seem to have the same problems.</p>
  
  <p>Are you aware of any JavaScript charting library that does not introduce memory leak after several updates of the chart?</p>