title: Change background image with remember feature
body: <p>im currently creating a site where i want people to be able to change the background image. i have the script to change working just fine, but i'd like to include a "remember" feature.</p>
  
  <p>here's my javascript code:</p>
  
  <pre><code>$(document).ready(function(){
      var body = $(document.body);
      $('#backgrounds').bind('change', function(event){
          var bg = $(this).val();
          if(bg == null || typeof bg === 'undefined' || $.trim(bg) === '')
              body.css('background-image', '');
          else
              body.css('background-image', "url('" + bg + "')");
      });
  });
  </code></pre>
  
  <p>how would i add a "remember" feature to this?</p>