title: a is null in my Google Map
body: <p>I put javascript code in my main.js file. With the following:</p>
  
  <p><a href="http://jsfiddle.net/Rochefort/Q7Vwg/" rel="nofollow noreferrer">http://jsfiddle.net/Rochefort/Q7Vwg/</a> (Can't copy my code here)</p>
  
  <p>But checking in Firebug, I get this error:</p>
  
  <p>''a is null'' in 29. line.</p>
  
  <p><img src="https://i.stack.imgur.com/UuGlj.png" alt="enter image description here"></p>
  
  <p>What's my problem?</p>