title: DP_jQuery_* is not defined when using with google chrome extension at content level
body: <p>I'm developing a google chrome extension.
  I am trying to use the jquery-ui datepicker inside a jquery-ui dialog of the existing webpage (content level)</p>
  
  <p>Like so: <a href="http://sites.google.com/site/kamimark/files/datepickerbug.JPG" rel="nofollow noreferrer">Screenshot</a></p>
  
  <p>I get "DP_jQuery_1274168529407 is not defined" when I click on any button of the datepicker widget and I think that it's because jquery datepicker adds on the html:</p>
  
  <pre><code>onclick="DP_jQuery_1274192751418.datepicker._selectDay('#new\\-app\\-date',4,2010, this);return false;"
  </code></pre>
  
  <p>This means i'll have to change the datepicker library to avoid modifying the html but rather attach an event on each obj like this:</p>
  
  <pre><code>.click(function(){DP_jQuery_1274192751418.datepicker._selectDay('#new\\-app\\-date',4,2010, this);return false;})
  </code></pre>
  
  <p>This will probably keep the scope safe</p>
  
  <p>What do you think?</p>