popup centered nested window in html

popup_center_nested_window_html.js

function popupCenter(url, width, height, name) {
  var left = (screen.width/2)-(width/2);
  var top = (screen.height/2)-(height/2);
  return window.open(url, name, "menubar=no,toolbar=no,status=no,width="+width+",height="+height+",toolbar=no,resizable=yes,scrollbars=yes,left="+left+",top="+top);
};

/* Usage by example */
  jQuery('.auth_form').submit(function(e){
    var $form = jQuery(this);

    var social = $form.find('input[name=social]:checked');
    if( social.length > 0 )
    {
      var _href = '/users/auth/' + social.val();
      popupCenter(_href, 640, 480, "authPopup");
      e.stopPropagation();
      return false;
    }

    return true;
  });