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! ***
//
// 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.
//
// 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.
//
// Something that needs explaining - the Vertical Menu setup. You can see most menus below
// are 'true', that is they are vertical, except for the first root menu. The 'length' and
// 'width' of an item depends on its orientation -- length is how long the item runs for in
// the direction of the menu, and width is the lateral dimension of the menu. Just look at
// the examples and tweak the numbers, they'll make sense eventually :).

    var menu = new Array();

// Default colours passed to most menu constructors (just passed to functions, not
// a global variable - makes things easier to change later in bulk).
//  var defOver = '#336699', defBack = '#003366';
//  var defOver = '#92A0CC', defBack = '#CED2D9';
    var defOver = '#FFFFFF', defBack = '#CED2D9';
// Default 'length' of menu items - item height if menu is vertical, width if horizontal.
    var defLength = 22;

// Menu 0 is the special, 'root' menu from which everything else arises.
    menu[0] = new Array();
// A non-vertical menu with a few different colours and no popout indicator, as an example.
// *** MOVE ROOT MENU AROUND HERE ***  it's positioned at (5, 0) and is 17px high now.
    menu[0][0] = new Menu(false, '', 0, 165, 14, '#FFFFFF', '#CED2D9', '', 'itemText');
// Notice how the targets are all set to nonzero values...
// The 'length' of each of these items is 40, and there is spacing of 10 to the next item.
// Most of the links are set to '#' hashes, make sure you change them to actual files.
    menu[0][1] = new Item('<img name="produkte" border="0" src="img/produckte_off.gif" width="183" height="14">', 'produkt_uebersich.htm', '', 183, 0, 1);
    menu[0][2] = new Item('<img name="unternehmen" border="0" src="img/unternehmen_off.gif" width="197" height="14">', 'unternehm.html', '', 197, 0, 2);
    menu[0][3] = new Item('<img name="news" border="0" src="img/news_off.gif" width="183" height="14">', 'newsl.php', '', 183, 0, 3);
    menu[0][4] = new Item('<img name="kontakt" border="0" src="img/kontakt_off.gif" width="195" height="14">', 'kontakt.php', '', 195, 0, 4);
// 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);

// File menu.
    menu[1] = new Array();
// The File menu is positioned 0px across and 22 down from its trigger, and is 80 wide.
// All text in this menu has the stylesheet class 'item' -- see the <style> section above.
// We've passed a 'greater-than' sign '>' as a popout indicator. Try an image...?
    menu[1][0] = new Menu(true, '<img src="img/pfeil.gif" width="10" height="14">', 1, 16, 200, defOver, defBack, 'itemBorder', 'itemText');
    menu[1][1] = new Item('&nbsp;ALX&nbsp;range', 'produkt_uebersich.htm', '', defLength, 0, 0);
    menu[1][2] = new Item('&nbsp;Packaging', 'verpackung.php', '', defLength, 0, 5);
// Non-zero target means this will trigger a popout -- menu[4] which is the 'Reopen' menu.
    menu[1][3] = new Item('&nbsp;Closure&nbsp;options', 'bedeckelung.php', '', defLength, 0, 6);
    menu[1][4] = new Item('&nbsp;Custom-made&nbsp;products', 'sonder.php', '', defLength, 0, 0);
    menu[1][5] = new Item('&nbsp;Tray&nbsp;sealers', 'siegel.php', '', defLength, 0, 0);	
    menu[1][6] = new Item('&nbsp;&nbsp;&nbsp;', '#', '', defLength, 0, 0);	
    menu[1][7] = new Item('&nbsp;Quality&nbsp;&amp;&nbsp;Environment', 'qualitaet.htm', '', defLength, 0, 0);	
    menu[1][8] = new Item('&nbsp;Service', 'service.htm', '', defLength, 0, 0);			

// Unternehmen menu.
    menu[2] = new Array();
    menu[2][0] = new Menu(true, '>', 6, 16, 240, defOver, defBack, 'itemBorder', 'itemText');
    menu[2][1] = new Item('&nbsp;About&nbsp;ALX	', 'unternehm.html', '', defLength, 0, 0);
    menu[2][2] = new Item('&nbsp;Team', 'ansprech.html', '', defLength, 0, 0);
    menu[2][3] = new Item('&nbsp;Jobs', 'job.php', '', defLength, 0, 0);
	menu[2][4] = new Item('&nbsp;General terms & conditions', 'agb.html', '', defLength, 0, 0);				

// News menu
    menu[3] = new Array();
    menu[3][0] = new Menu(true, '<', 0, 16, 186, defOver, defBack, 'itemBorder', 'itemText');
    menu[3][1] = new Item('&nbsp;What&acute;s new', 'newsl.php', '', defLength, 0, 0);
    menu[3][2] = new Item('&nbsp;Trade&nbsp;shows', 'messel.php', '', defLength, 0, 0);
    menu[3][3] = new Item('&nbsp;Newsletter', 'newsletter.php', '', defLength, 0, 0);
	menu[3][4] = new Item('&nbsp;Weblinks', 'weblinks.php', '', defLength, 0, 0);

// Kontakt menu
    menu[4] = new Array();
    menu[4][0] = new Menu(true, '<', 8, 16, 186, defOver, defBack, 'itemBorder', 'itemText');
    menu[4][1] = new Item('&nbsp;Contact', 'kontakt.php', '', defLength, 0, 0);
    //menu[4][2] = new Item('&nbsp;ALX address details', 'adress_details.htm', '', defLength, 0, 0);
    menu[4][2] = new Item('&nbsp;Directions to ALX', 'anfahrt.html', '', defLength, 0, 0);

// Verpackung untermenu
    menu[5] = new Array();
    menu[5][0] = new Menu(true, '>', 85, 0, 235, defOver, defBack, 'itemBorder', 'itemText');
    menu[5][1] = new Item('&nbsp;EPS sealable trays', 'thermo.php', '', defLength, 0, 0);
    menu[5][2] = new Item('&nbsp;EPS hinged lid containers', 'hinged_lid.php', '', defLength, 0, 0);
    menu[5][3] = new Item('&nbsp;PP trays for the microwave', 'mikrowell.php', '', defLength, 0, 0);
    menu[5][4] = new Item('&nbsp;PP sandwich packaging', 'sandwich.php', '', defLength, 0, 0);
    menu[5][5] = new Item('&nbsp;CPET trays for the oven', 'backofen.php', '', defLength, 0, 0);	
    menu[5][6] = new Item('&nbsp;APET trays for delicatessen', 'feinkost.php', '', defLength, 0, 0);	
    menu[5][7] = new Item('&nbsp;Transportation boxes', 'transport.php', '', defLength, 0, 0);
    menu[5][8] = new Item('&nbsp;Modified Atmosphere<br>&nbsp;Packaging', 'map.php', '', defLength, 0, 0);


// Bedecklung menu
    menu[6] = new Array();
    menu[6][0] = new Menu(true, '>', 85, 0, 235, defOver, defBack, 'itemBorder', 'itemText');
    menu[6][1] = new Item('&nbsp;Sealing film/ foil', 'folien.php', '', defLength, 0, 0);
    menu[6][2] = new Item('&nbsp;Showcase lids', 'deckel.php', '', 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);
}
//  End -->