Gravatar

HTML

<script src="http://www.webtoolkit.info/djs/webtoolkit.md5.js"></script>
<input id="email" name="email" type="text" value="[email protected]">

<div id="mygravatar"></div>

CSS

#mygravatar {margin: 10px}

JavaScript

var myemail = $('#email').val();

$("#email").blur(function(){
    var gravatar = $('<img>').attr(
        {src: 'http://www.gravatar.com/avatar/' + MD5(myemail)}
    );
    prompt("a",'http://www.gravatar.com/avatar/' + MD5(myemail));
    $('#mygravatar').html(gravatar);    
});