Using prependTo to display full size images of thumbnails

I have a default image on my site using prependTo:

$('<li></li>').prependTo('#files')
              .html('<img src="/media/sample1.jpeg" alt="" /><br />')
              .addClass('success');

Above the default image are 3 thumbnails, which are written as:

<div id="gallery">
    <ul> 
        <li>
            <a href="/media/glasses1.png" title="styling yourself w/ this armani pair">
                <img src="/media/glasses1.png" width="72" height="72" alt="" /> 
            </a>
        </li> 
        <li>
            <a href="/media/glasses0.png" title="styling yourself w/ this guess pair">
                <img src="/media/glasses0.png" width="72" height="72" alt="" /> 
            </a>
        </li> 
        <li>
            <a href="/media/glasses2.png" title="styling yourself w/ this guess pair">
                <img src="/media/glasses2.png" width="72" height="72" alt="" /> 
            </a>
 开发者_Go百科       </li>
    </ul>
</div>

How do I detect a mouseover on the thumbnail so that I can replace the default image with the full size image of the thumbnail?

---

something like:

$('#gallery img').mouseenter(function() {
    $('#files img.success').attr("src", $(this).attr("src"));
});

you'll need to figure out what to do on .mouseleave()

---

You need to clone the actual image from the gallery container, just copying the image source does not force the browser to rerender.

EDIT: From what you describe in your comments I think this should work for you

$('#gallery img').mouseenter(function() {
  var img = $('<img alt=""/>').attr('src', $(this).data('other'));
  $('#files img').replaceWith(img);
});

And add a data-other attribute on your thumbnails:

<a href="/media/glasses1.png" title="styling yourself w/ this armani pair">
  <img src="/media/glasses1.png" data-other="replacementImage.png" width="72" height="72" alt="" /> 
</a>

If you have a naming convention or some other way to determine the url to the new image without adding the attribute, you can do that instead.