title: window.open not working in IE
body: <p>Apparently, this call to <code>window.open</code> is not valid under Internet Explorer. The Javascript code on my site is not running, I would assume it is due to that error. </p>
  
  <p>The line it tells me the error is on, is the call to window.open, apparently an argument is not valid there.</p>
  
  <pre><code>$('.objeto').click( 
          function() {
              var center   = 'height=380,width=900,top='+((screen.width - 900)/2)+',left='+((screen.height - 380)/2);
              var address = $(this).attr('id');
              window.open (address,'Ver articulo', config=center); 
          }
      );
  </code></pre>
  
  <p>The site runs fine under both Google Chrome, and Firefox.</p>