title: Loading jQuery multiple times in the same page
body: <p>I'm implementing a plug-in that's embeddable in different sites (a la Meebo, Wibiya), and I want to use jQuery. Problem is, the site I'm embedding to, may already have a jQuery script loaded.</p>
  
  <p>The question is, what's the best approach for this kind of problem:</p>
  
  <ol>
  <li><p>Should I just check if jQuery is already loaded and if so, use the original site's jQuery, otherwise load it myself? If I use this approach, am I not risking comaptibility problems (i.e. the site uses an old version of jQuery)?</p></li>
  <li><p>Should I load jQuery myself (whether it's already loaded or not) and call "jQuery.noConflict(true)" when it's finished loading? If so, how can I make sure that <em>my</em> jQuery has finished loading (hooking to the onLoad event doesn't seem to work all the time, and polling for "jQuery" won't work for obvious reasons)?</p></li>
  <li><p>Should I do something else?</p></li>
  </ol>
  
  <p>Thanks.</p>