title: conditional check for focus is in textarea or input field
body: <pre><code>$('body').keyup(function(e)
  {
      var code = e.keyCode ? e.keyCode : e.which;
  
      switch(code)
      {
          case 8:
          alert('blah');
          break;
      }
  });
  </code></pre>
  
  <p>When a user hits backspace, I want the alert to pop up UNLESS the cursor is positioned within a textearea, input, etc.</p>
  
  <p>Any ideas on how to do this?</p>