title: Get data to NodeRed from Homepage (HighCharts)
body: <p>I would like to extract the data from this chart using node-red:</p>
  
  <p><a href="http://fiskdata.se/raknare/live/live.php?locationId=109" rel="nofollow noreferrer">http://fiskdata.se/raknare/live/live.php?locationId=109</a>
  The chart is labeled with "Preliminära resultat 2018" and I want the green and red series. I would like to have alerts and also trend the waterflow and temperature in my home automation.</p>
  
  <p>In node red I am using a "http request node" -> "html node" -> "function" -> "Debug".</p>
  
  <p>My Questions is:
  What selector should I use in "html node"? I have tried to solve it with web developer in firefox against the webpage but I do not understand it.</p>
  
  <p>And what would my function look like to convert the two series into arrays in node red? Two series with value/date.</p>
  
  <p><a href="https://i.stack.imgur.com/N6gXR.png" rel="nofollow noreferrer">Image for Node_red Code</a></p>