jQuery.githubUser = function(username, callback) {
    jQuery.getJSON("http://github.com/api/v1/json/" + username + "?callback=?", callback);
  }
 
  $.githubUser('mbleigh', function(data) {
    $('#github-projects').html('');
    
    var repos = data.user.repositories;
    repos.sort(function(a,b) {
      return b.watchers - a.watchers;
    });
    
    $(repos).each(function() {
      $('#github-projects').append("\
<div class='repo'>\
  <h3><a href='" + this.url + "'>" + this.name + "</a></h3>\
  <span class='desc'>"+this.description+"</span>\
</div>");
    });
  });