var expand_text = function(obj) {
  $(obj + ' .read_more').hide();
  $(obj + ' .truncate').slideDown(200);
}

var contract_text = function(obj) {
  $.scrollTo(obj, 200, function() {
    $(obj + ' .truncate').slideUp(200, function() {
      $(obj + ' .read_more').show();
    });
  });
}