function scrollTo() {
  var pages = Ext.get('thumb-pages');
  var offsetTop = Ext.get('selected').dom.offsetTop;
  pages.scroll('bottom', offsetTop-217, true);
}
function scrollToMagazine() {
  var pages = Ext.get('thumb-pages');
  var offsetLeft = Ext.get('selected').dom.offsetLeft;
  pages.scroll('left', offsetLeft-179, true);
}