title: mootools each not iterating for me
body: <p>I'm going nuts here but the each function is just not working for me.
  I have about 20 elements with a class name of "lookup" (text boxes) and this function successfully turns all elements red:</p>
  
  <pre><code>    document.addEvent('domready', function()
      {
          var tb = $$('.lookup');
          tb.setStyle("color", "red");
      });
  </code></pre>
  
  <p>However, in the following code, I would expect to get some alert for each element but the alert don't hit at all, and no exception is raised either.  It is like the each is iterating through 0 items....</p>
  
  <pre><code>    document.addEvent('domready', function()
      {
          var tb = $$('.lookup');
          tb.each(function(el) 
          {
              alert("hi"); 
          });
      });
  </code></pre>
  
  <p>Any idea what I might be doing wrong?
  In both examples above, I used $$('.lookup').each and $$('.lookup').setStyle() with the same outcome (example 1 works; example 2 doesn't).</p>
  
  <p>Thanks in advance.</p>