/*
   ns4x = (document.layers)? true:false;
   if (ns4x) 
	{
		document.write("<LINK REL='stylesheet' TYPE='text/css' href='lx_ns4.css'>")
	}
else
	{
		document.write("<LINK REL='stylesheet' TYPE='text/css' href='lx.css'>")
	}
*/
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.
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).
// bgfarbe menu und mouseover-farbe
var defOver = '#D60101', defBack = '#B7202E';

// Default 'length' of menu items - item height if menu is vertical, width if horizontal.
var defLength = 34;
var varabstand = 0;

// auflösung

if ((screen.width == 800) && (screen.height == 600)) 
var labstand = 100;
else if ((screen.width == 1024) && (screen.height == 768))
var labstand = 210;
else if ((screen.width == 1152) && (screen.height == 864))
var labstand = 280;
else if ((screen.width == 1280) && (screen.height == 1024))
var labstand = 335;
else if ((screen.width == 1600) && (screen.height == 1200))
var labstand = 510;
else var labstand = 210;


// 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.
// hier sind die bgfarben der zu erstellenden menüs definiert.

menu[0][0] = new Menu(false, '', labstand, 171, 13, '#B7202E', '#B7202E', '', 'menuText');
// 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('  Home', 'index.html', '', 40, 20, 1);
menu[0][4] = new Item('  Unterb&ouml;den', 'unterboeden.html', '', 65, 20, 2);
menu[0][2] = new Item('  Holzb&ouml;den', 'holzboeden.html', '', 59, 20, 3);
menu[0][5] = new Item('  Massivholzm&ouml;bel', '#', '', 95, 20, 4);
menu[0][3] = new Item('  Massivholzstufen', 'massivholzstufen.html', '', 95, 20, 5);
menu[0][6] = new Item('  Referenzen', '#', '', 70, 20, 6);
menu[0][7] = new Item('  Kontakt', 'kontakt.php', '', 60, 0, 7);

// weitere untermenues sind mit der letzten zahl hier oben 1..6)


// news menu.
menu[1] = new Array();
// The File menu is positioned 0px across and 18 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, '>', 0, 18, 80, defOver, defBack, 'itemBorder', 'itemText');


// unterböden menu.
menu[2] = new Array();
menu[2][0] = new Menu(true, '>', 0, 18, 115, defOver, defBack, 'itemBorder', 'itemText');
menu[2][1] = new Item('Unterb&ouml;den', 'unterboeden.html', '', defLength, 0, 0);
menu[2][2] = new Item('Neubauten <br>Betondecken', 'nb.html', '', defLength, 0, 0);
menu[2][3] = new Item('Holzbauten <br>Holzbalkendecken', 'h.html', '', defLength, 0, 0);
menu[2][4] = new Item('Altbausanierung', 'a.html', '', defLength, 0, 0);
menu[2][5] = new Item('Klassische <br>Holzauflattungen', 'kh.html', '', defLength, 0, 0);

// holzböden menu
menu[3] = new Array();
menu[3][0] = new Menu(true, '<', 0, 18, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[3][1] = new Item('Holzb&ouml;den', 'holzboeden.html', '', defLength, 0, 0);
menu[3][2] = new Item('Antikholzb&ouml;den', 'antikholzboeden.html', '', defLength, 0, 0);
menu[3][3] = new Item('Terassen<br>aus Holz', 'terassen.html', '', defLength, 0, 0);

// massivholzmöbel menu
menu[4] = new Array();
menu[4][0] = new Menu(true, '<', 0, 18, 95, defOver, defBack, 'itemBorder', 'itemText');
menu[4][1] = new Item('Tische', 'tische.html', '', defLength, 0, 0);
menu[4][2] = new Item('St&uuml;hle', 'stuehle.html', '', defLength, 0, 0);
menu[4][3] = new Item('B&auml;nke', 'baenke.html', '', defLength, 0, 0);

// massivholzstufen menu
menu[5] = new Array();
menu[5][0] = new Menu(true, '<', 0, 18, 95, defOver, defBack, 'itemBorder', 'itemText');

// referenzen menu
menu[6] = new Array();
menu[6][0] = new Menu(true, '<', 0, 18, 70, defOver, defBack, 'itemBorder', 'itemText');
menu[6][1] = new Item('Kunden', 'kunden.html', '', defLength, 0, 0);
menu[6][2] = new Item('Fotos', 'ref_fotos.html', '', defLength, 0, 0);

// kontakt menu
menu[7] = new Array();
menu[7][0] = new Menu(true, '<', 0, 18, 80, defOver, defBack, 'itemBorder', 'itemText');


// resize
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);
}


function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

<!--
/***********************************************
* Gradual Highlight image script- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/

var baseopacity=60

function slowhigh(which2){
imgobj=which2
browserdetect=which2.filters? "ie" : typeof which2.style.MozOpacity=="string"? "mozilla" : ""
instantset(baseopacity)
highlighting=setInterval("gradualfade(imgobj)",50)
}

function slowlow(which2){
cleartimer()
instantset(baseopacity)
}

function instantset(degree){
if (browserdetect=="mozilla")
imgobj.style.MozOpacity=degree/100
else if (browserdetect=="ie")
imgobj.filters.alpha.opacity=degree
}

function cleartimer(){
if (window.highlighting) clearInterval(highlighting)
}

function gradualfade(cur2){
if (browserdetect=="mozilla" && cur2.style.MozOpacity<1)
cur2.style.MozOpacity=Math.min(parseFloat(cur2.style.MozOpacity)+0.1, 0.99)
else if (browserdetect=="ie" && cur2.filters.alpha.opacity<100)
cur2.filters.alpha.opacity+=10
else if (window.highlighting)
clearInterval(highlighting)
}

function grossesbild (foto,breite,hoehe)
  {
	var x="";
	hbreite = breite;
	hhoehe = hoehe;
    var myLeft = (screen.width-hbreite)/2;
    var myTop = (screen.height-hhoehe)/2;
	x="toolbar=no,location=no,status=no,menubar=no,scrollbar=auto,resizable=no,left="+myLeft+",top="+myTop+",width="+hbreite+",height="+hhoehe;
	gb = window.open(foto, "Bild", x);
  }

//-->