var Togglr = new Object();

Togglr.init = function(el) {
  el = document.getElementById(el);

  Togglr.dts = el.getElementsByTagName('dt');
  Togglr.dds = el.getElementsByTagName('dd');

  for (var i = 0; i < Togglr.dts.length; i++) {
    Togglr.dts[i].list_id = i;
    Togglr.dts[i].onclick = Togglr.toggle;
  }
}

Togglr.toggle = function() {
  if (Togglr.dds[this.list_id].className == "hidden") {
    new Effect.BlindDown(Togglr.dds[this.list_id], {duration: 0.7});
    Togglr.dds[this.list_id].className = "visible";
  } else {
    new Effect.BlindUp(Togglr.dds[this.list_id], {duration: 0.7});
    Togglr.dds[this.list_id].className = "hidden";
  }
}