title: multiple stacked area charts nvd3 - errors
body: <p>I am trying to create a dashboard with multiple area charts on the same page. I have two issues. </p>
  
  <ol>
  <li><p>I want to get rid of the small circle on the chart that indicates value point and moves along with the cursor and the interactiveguideline. What is the name of that circle and how do I remove it?</p></li>
  <li><p>After some research, I figured out how to change the Y-axis values to percentages. But I would like some graphs to show percentages and others to show regular numbers. Is there an easy way to do this?</p></li>
  </ol>