$(document).ready(function(){
  
  // open links with a class of "external" and portfolio links in a new window
  $("a.external, ul#portfolio div.portfolio-image a").click(function(){
    window.open(this.href);
    return false;
  });
  
  // stop background image flicker in IE6
  try { document.execCommand("BackgroundImageCache", false, true); }
  catch(err) {}
  
});