function externalLinks() {   
 if (!document.getElementsByTagName) return;   
 var anchors = document.getElementsByTagName("a");   
 for (var i=0; i<anchors.length; i++) {   
   var anchor = anchors[i];   
   if (anchor.getAttribute("href") &&   
       anchor.getAttribute("rel") == "external")   
     anchor.target = "_blank";   
 }   
}   

$(document).ready(function () {
  externalLinks();
  lastBlock = $('#expanded');
  maxWidth = 210;
  minWidth = 70;

  $('#menu ul li a').hover(
    function () {
      $(lastBlock).animate({width: minWidth + 'px'}, {queue:false, duration: 400});
      $(this).animate({width: maxWidth + 'px'}, {queue:false, duration: 400});
      lastBlock = this;
    }
  );

  function enlarge(imgobj) {
    var filename = imgobj.attr('src');
    $('#poppic').attr('src', filename.replace('/p', '/lp'));
    $('#popholder').css('top', ($(window).height() / 2 + $(window).scrollTop()) + 'px');
    $('#popback').show();
    $('#popholder').fadeIn('slow');
  }
  
  $('.article img').click(function() {
    enlarge($(this));
  });
  
  $('#popholder').click(function() {
    $('#popholder').hide();
    $('#popback').hide();
    $('#poppic').attr('src', '');
  });
});