{% INCLUDEJS 'jquery.popup.js' %}
<script type="text/javascript">
//<![CDATA[
var logInPopUpLeft, logInPopUpTop, logInPopUpWidth = {{ WIDTH_ADVLOGIN }}, logInPopUpHeight = {{ HEIGHT_ADVLOGIN }}, logInBackgroundResize = true, logInBackgroundClass = false;

$(document).ready( function() {
   $(window).resize(function() {
      var windowWidth = document.documentElement.clientWidth;
      var popupWidth = $("#login_popup").width();
      var mypopup = $("#login_popup");
      $("#login_popup").css({"left": windowWidth/2 - popupWidth/2});
   });
});
//]]>
</script>