javascript - Getting the src attribute of an image within a parent tag -

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i have list of images, 1 of gets class="selected" after change occurs on page:

<div id="selectable">      <li>         <img src="\images\1.jpg" />     </li>     <li class="selected">         <img src="\images\2.jpg" />       </li>     <li>         <img src="\images\3.jpg" />       </li> </div>

i want able capture value of image's src attribute, can use later... i'm thinking this:

$("#selectable").change(function() {     var src = $('li[class="selected"]').attr('src');     alert("source of image alternate text = example - " + src); }

but need value of src attribute of child element (img).

 $("li.selected").find("img").attr("src");

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