var isDOM = (document.getElementById ? true : false); 
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);

function getRef(id) {
  if (isDOM) return document.getElementById(id);
  if (isIE4) return document.all[id];
  if (isNS4) return document.layers[id];
  }

function getSty(id) {
  return (isNS4 ? getRef(id) : getRef(id).style);
  } 

// Hide timeout.
var popTimer = 0;

// Array showing highlighted menu items.
var litNow = new Array();

function popOver(menuNum, itemNum) {
  clearTimeout(popTimer);
  hideAllBut(menuNum);
  litNow = getTree(menuNum, itemNum);
  changeCol(litNow, true);
  targetNum = menu[menuNum][itemNum].target;
  if (targetNum > 0) {
    thisX = parseInt(menu[menuNum][0].ref.left) + parseInt(menu[menuNum][itemNum].ref.left);
    thisY = parseInt(menu[menuNum][0].ref.top) + parseInt(menu[menuNum][itemNum].ref.top);
    with (menu[targetNum][0].ref) {
      left = parseInt(thisX + menu[targetNum][0].x);
      top = parseInt(thisY + menu[targetNum][0].y);
      visibility = 'visible';
      }
    }
  }

function popOut(menuNum, itemNum) {
  if ((menuNum == 0) && !menu[menuNum][itemNum].target)
    hideAllBut(0)
  else
    popTimer = setTimeout('hideAllBut(0)', 500);
  }

function getTree(menuNum, itemNum) {
  // Array index is the menu number. The contents are null (if that menu is not a parent)
  // or the item number in that menu that is an ancestor (to light it up).
  itemArray = new Array(menu.length);
  while(1) {
    itemArray[menuNum] = itemNum;
    // If we've reached the top of the hierarchy, return.
    if (menuNum == 0) return itemArray;
    itemNum = menu[menuNum][0].parentItem;
    menuNum = menu[menuNum][0].parentMenu;
    }
  }
    
// Pass an array and a boolean to specify colour change, true = over colour.
function changeCol(changeArray, isOver) {
  for (menuCount = 0; menuCount < changeArray.length; menuCount++) {
    if (changeArray[menuCount]) {
      newCol = isOver ? menu[menuCount][0].overCol : menu[menuCount][0].backCol;
      // Change the colours of the div/layer background.
      with (menu[menuCount][changeArray[menuCount]].ref) {
        if (isNS4) bgColor = newCol;
        else backgroundColor = newCol;
        }
      }
    }
  }

function hideAllBut(menuNum) {
  var keepMenus = getTree(menuNum, 1);
  for (count = 0; count < menu.length; count++)
  if (!keepMenus[count])
  menu[count][0].ref.visibility = 'hidden';
  changeCol(litNow, false);
  }
    
// *** MENU CONSTRUCTION FUNCTIONS ***
function Menu(isVert, popInd, x, y, width, overCol, backCol, borderClass, textClass) {
  // True or false - a vertical menu?
  this.isVert = isVert;
  // The popout indicator used (if any) for this menu.
  this.popInd = popInd
  // Position and size settings.
  this.x = x;
  this.y = y;
  this.width = width;
  // Colours of menu and items.
  this.overCol = overCol;
  this.backCol = backCol;
  // The stylesheet class used for item borders and the text within items.
  this.borderClass = borderClass;
  this.textClass = textClass;
  // Parent menu and item numbers, indexed later.
  this.parentMenu = null;
  this.parentItem = null;
  // Reference to the object's style properties (set later).
  this.ref = null;
  }
    
function Item(text, href, frame, length, spacing, target) {
  this.text = text;
  this.href = href;
  this.frame = frame;
  this.length = length;
  this.spacing = spacing;
  this.target = target;
  // Reference to the object's style properties (set later).
  this.ref = null;
  }

function writeMenus() {
  if (!isDOM && !isIE4 && !isNS4) return;
  for (currMenu = 0; currMenu < menu.length; currMenu++) with (menu[currMenu][0]) {
    // Variable for holding HTML for items and positions of next item.
    var str = '', itemX = 0, itemY = 0;
    // Remember, items start from 1 in the array (0 is menu object itself, above).
    // Also use properties of each item nested in the other with() for construction.
    for (currItem = 1; currItem < menu[currMenu].length; currItem++) with (menu[currMenu][currItem]) {
      var itemID = 'menu' + currMenu + 'item' + currItem;
      // The width and height of the menu item - dependent on orientation!
      var w = (isVert ? width : length);
      var h = (isVert ? length : width);
      // Create a div or layer text string with appropriate styles/properties.
      // Thanks to Paul Maden (www.paulmaden.com) for helping debug this in IE4, apparently
      // the width must be a miniumum of 3 for it to work in that browser.
      if (isDOM || isIE4) {
        str += '<div id="' + itemID + '" style="position: absolute; left: ' + itemX + '; top: ' + itemY +  '; width: ' +  w + '; height: ' + h + '; visibility: inherit; ';
        if (backCol) str += 'background: ' + backCol + '; ';
          str += '" ';
        }
      if (isNS4) {
        str += '<layer id="' + itemID + '" left="' + itemX + '" top="' + itemY + '" width="' +  w + '"  height="' + h +  '" visibility="inherit" ';
        if (backCol) str += 'bgcolor="' + backCol + '" ';
        }
      if (borderClass) str += 'class="' + borderClass + '" ';
      // Add mouseover handlers and finish div/layer.
      str += 'onMouseOver="popOver(' + currMenu + ',' + currItem + ')" onMouseOut="popOut(' + currMenu +  ',' +  currItem + ')">';
      // Add contents of item (default: table with link inside).
      // In IE/NS6+, add padding if there's a border to emulate NS4's layer padding.
      // If a target frame is specified, also add that to the <a> tag.
      str += '<table width="' + (w - 8) + '" border="0" cellspacing="0" cellpadding="' + (!isNS4 &&  borderClass ? 3 :  0) + '"><tr><td align="left" height="' + (h - 7) + '">' + '<a class="' +  textClass + '" href="' + href + '"' +  (frame ? ' target="' + frame + '">' : '>') + text +  '</a></td>';
      if (target > 0) {
        // Set target's parents to this menu item.
        menu[target][0].parentMenu = currMenu;
        menu[target][0].parentItem = currItem;
        // Add a popout indicator.
        if (popInd) str += '<td class="' + textClass + '" align="right">' + popInd + '</td>';
        }
      str += '</tr></table>' + (isNS4 ? '</layer>' : '</div>');
      if (isVert) itemY += length + spacing;
      else itemX += length + spacing;
    }
    if (isDOM) {
      var newDiv = document.createElement('div');
      document.getElementsByTagName('body').item(0).appendChild(newDiv);
      newDiv.innerHTML = str;
      ref = newDiv.style;
      ref.position = 'absolute';
      ref.visibility = 'hidden';
      }
    // Insert a div tag to the end of the BODY with menu HTML in place for IE4.
    if (isIE4) {
      document.body.insertAdjacentHTML('beforeEnd', '<div id="menu' + currMenu + 'div" ' +  'style="position:  absolute; visibility: hidden">' + str + '</div>');
      ref = getSty('menu' + currMenu + 'div');
      }
    // In NS4, create a reference to a new layer and write the items to it.
    if (isNS4) {
      ref = new Layer(0);
      ref.document.write(str);
      ref.document.close();
      }
    for (currItem = 1; currItem < menu[currMenu].length; currItem++) {
      itemName = 'menu' + currMenu + 'item' + currItem;
      if (isDOM || isIE4) menu[currMenu][currItem].ref = getSty(itemName);
      if (isNS4) menu[currMenu][currItem].ref = ref.document[itemName];
      }
    }
  with(menu[0][0]) {
    ref.left = x;
    ref.top = y;
    ref.visibility = 'visible';
    }
  }
    
// Syntaxes: *** START EDITING HERE, READ THIS SECTION CAREFULLY! ***
// New menu declaration
// menu[menuNumber][0] = new Menu(Vertical menu? (true/false), 'popout indicator', left, top,
// width, 'mouseover colour', 'background colour', 'border stylesheet', 'text stylesheet');
//
// Left and Top are measured on-the-fly relative to the top-left corner of its trigger, or
// for the root menu, the top-left corner of the page.
//
// New menu item declaration
// menu[menuNumber][itemNumber] = new Item('Text', 'URL', 'target frame', length of menu item,
//  additional spacing to next menu item, number of target menu to popout);
//
// If no target menu (popout) is desired, set it to 0. Likewise, if your site does not use
// frames, pass an empty string as a frame target.
// The 'length' and 'width' of an item depends on its orientation -- length is how long the item  runs for 
    
var menu = new Array();
  
// Default colours passed to menu constructors 
var defOver = '#2A5D4C', defBack = '#f7ec14';
// Default 'length' of menu items - item height if menu is vertical, width if horizontal.
var defLength = 30;
    
//////////////////////////////////////////////////////////////////////////
// MAIN MENU:: Menu 0 is the special, 'root' menu from which everything else arises.
menu[0] = new Array();
// A horizontal menu with no popout indicators.
// *** MOVE ROOT MENU AROUND HERE ***  it's positioned at (175, 250) and is 18px high now.
menu[0][0] = new Menu(false, ' ', 175, 250, 18, defOver, defBack, 'navBorder', 'navText');
// The 'length' of each of these items is 125, and there is spacing of 20 to the next item.
// Make sure you change the links to the actual files.
menu[0][1] = new Item('Home', 'http://www.midrealm.org/andelcrag/index.htm', '', 125, 20, 0);
menu[0][2] = new Item('Officers', '', '', 125, 25, 1);
menu[0][3] = new Item('Cantons', 'http://www.midrealm.org/andelcrag/groups.htm', '', 125, 20, 0);
menu[0][4] = new Item('Baronial Info', 'http://www.midrealm.org/andelcrag/info.htm', '', 125, 20, 0);
menu[0][5] = new Item('Baron/Baroness', 'http://www.midrealm.org/andelcrag/baron_ess.htm', '', 125, 0, 2);
// An example of a link with a target frame/window as well...
// menu[0][4] = new Item('  Site', 'http://gusnz.cjb.net', '_new', 40, 10, 0);

//////////////////////////////////////////////////////////////////////////
//SUB MENUS::////////////////////////////////////////////////////////////
    
// Officers menu.
menu[1] = new Array();
// The Officers menu is positioned 50px across and 40px down from its trigger, and is 125 wide.
// All text in this menu has the stylesheet class 'nav'.
// We've passed a 'greater-than' sign '>' as a popout indicator.
// Non-zero target means this will trigger a popout -- menu[2] which is the '2nd' menu.
menu[1][0] = new Menu(true, '', 50, 40, 125, defOver, defBack, 'navBorder', 'navText');
menu[1][1] = new Item('Baronial', 'http://www.midrealm.org/andelcrag/bar_ofcr.htm', '', defLength, 10, 0);
menu[1][2] = new Item('Cantons', 'http://www.midrealm.org/andelcrag/cant_ofcr.htm', '', defLength, 10, 0);
   
// Baron/ess menu.
menu[2] = new Array();
menu[2][0] = new Menu(true, '>', 50, 40, 125, defOver, defBack, 'navBorder', 'navText');
menu[2][1] = new Item('Baronial Missives', 'missives.htm', '', defLength, 28, 0);
// menu[2][1] = new Item('Two', 'two.htm', '', defLength, 28, 0);
// menu[2][3] = new Item('Three', 'three.htm', '', defLength, 0, 0);
   
// *** OPTIONAL CODE FROM HERE DOWN ***
// These two lines handle the window resize bug in NS4. See <body onResize="...">.
// I recommend you leave this here as otherwise when you resize NS4's width menus are hidden.
var popOldWidth = window.innerWidth;
nsResizeHandler = new Function('if (popOldWidth != window.innerWidth) location.reload()');
   
// This is a quick snippet that captures all clicks on the document and hides the menus
// every time you click. Use if you want.
if (isNS4) document.captureEvents(Event.CLICK);
document.onclick = clickHandle;
    
function clickHandle(evt) {
  if (isNS4) document.routeEvent(evt);
  hideAllBut(0);
  }
    
// This is just the moving command for the example.
function moveRoot() {
  with(menu[0][0].ref) left = ((parseInt(left) < 100) ? 100 : 5);
  }