title: Loop through IDs with jQuery and make them droppable
body: <p>I've got a container <code>#itemGrid</code> and a few children-divs. They are all unique.
  This is my code so far:</p>
  
  <pre><code>$('#grid-top').droppable({
       drop: dropHandler,
       accept: ".top"
  });
  
  $('#grid-assc').droppable({
      drop: dropHandler,
      accept: ".assc"
  });
  </code></pre>
  
  <p>As you may see, they all only accepting the class which is in the ID of the element. I have some more divs I want to make droppable, but this is just too much work. How can I loop through these elements?</p>