/*
 * menuExpandable.js - implements an expandable menu based on a HTML list
 * Author: Dave Lindquist (dave@gazingus.org)
 */

if (!document.getElementById)
    document.getElementById = function() { return null; }

function initializeMenu(menuId, actuatorId) {
    var menu = document.getElementById(menuId);
    var actuator = document.getElementById(actuatorId);

    if (menu == null || actuator == null) return;

    if (window.opera) return; // I'm too tired

    actuator.parentNode.style.listStyleImage = "url(/open.gif)";
    actuator.onclick = function() {
        var display = menu.style.display;
        this.parentNode.style.listStyleImage =
            (display == "block") ? "url(/open.gif)" : "url(/closed.gif)";
        menu.style.listStyleImage = "url(/closed.gif)";
        menu.style.display = (display == "block") ? "none" : "block";

        return false;
    }
}


function getElementsByClass (className) {
  var all = document.all ? document.all :
    document.getElementsByTagName('*');
  var elements = new Array();
  for (var e = 0; e < all.length; e++)
    if (all[e].className == className)
      elements[elements.length] = all[e];
  return elements;
}