title: script with the phone number to be replaced for that page
body: <p>So I tried this. I put the required code in the head:</p>
  
  <pre><code>&lt;script type="text/javascript"&gt; 
      var callback = function(formatted_number, mobile_number) {        
          var e = document.getElementById("number");         
          e.innerHTML = "";   
          e.appendChild(document.createTextNode(formatted_number));
      }; 
  &lt;/script&gt; 
  </code></pre>
  
  <p>And then instead of using: </p>
  
  <pre><code>&lt;body onload="_googWcmGet(callback, '0800-123-4567')"&gt; 
  &lt;span id="number"&gt;0800-123-4567&lt;/span&gt; &lt;/body&gt;
  </code></pre>
  
  <p>I'm using: </p>
  
  <pre><code>&lt;body&gt; &lt;span id="number"&gt;0800-123-4567&lt;/span&gt; &lt;script type="text/javascript"&gt; 
   window.onload = _googWcmGet(callback, '0800-123-4567'); &lt;/script&gt; &lt;/body&gt;
  </code></pre>
  
  <p>It errors out with _googWcmGet being undefined. Think this is due to my lack of knowledge of JS/DOM stuff and that I need to cal _googWcmGet outside the body tag some other way?</p>