title: change color of rows in grid in ExtJs
body: <p>How to get the Backgroud or text colour of first five rows to be different from the next five rows.
  For example, First 5 Yellow,5 Orange,5 Yellow,5 Orange,and so on.. </p>
  
  <p>I added following listener for the grid</p>
  
  <pre><code>listeners: {
      viewready: function(g) {
          g.getView().getRow(1).style.color="#f30";
      }
  } 
  </code></pre>
  
  <p>I've used this to get the contents in second line in red.But it's not working for me.</p>