title: D3 Mouse Move on Two Graphs at once
body: <p>How can I capture the mouse over events of two graphs at once. I need to do something like shown in the image below:</p>
  
  <p><a href="https://i.stack.imgur.com/MjTpr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MjTpr.png" alt="enter image description here"></a></p>
  
  <p>Can anyone guide me as to how should I approach this ?. So far I was able to get the simple mouseover working for a single graph.</p>