// JavaScript Document
//Smart Folding Menu tree- By Dynamic Drive (rewritten 03/03/02)
//For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
//This credit MUST stay intact for use

/*var head="display:''"
img1=new Image()
img1.src="fold.gif"
img2=new Image()
img2.src="open.gif"

var ns6=document.getElementById&&!document.all
var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1

function checkcontained(e){
var iscontained=0
cur=ns6? e.target : event.srcElement
i=0
if (cur.id=="foldheader")
iscontained=1
else
while (ns6&&cur.parentNode||(ie4&&cur.parentElement)){
if (cur.id=="foldheader"||cur.id=="foldinglist"){
iscontained=(cur.id=="foldheader")? 1 : 0
break
}
cur=ns6? cur.parentNode : cur.parentElement
}

if (iscontained){
var foldercontent=ns6? cur.nextSibling.nextSibling : cur.all.tags("UL")[0]
if (foldercontent.style.display=="none"){
foldercontent.style.display=""
cur.style.listStyleImage="url(open.gif)"
}
else{
foldercontent.style.display="none"
cur.style.listStyleImage="url(fold.gif)"
}
}
}

if (ie4||ns6)
document.onclick=checkcontained*/
  function treeMenu_init(menu, data) {
    var array = new Array(0);
    if(data != null && data != "") {
      array = data.match(/\d+/g);
    }
    var items = menu.getElementsByTagName("li");
    for(var i = 0; i < items.length; i++) {
      items[i].onclick = treeMenu_handleClick;
      if(!treeMenu_contains(treeMenu_getClasses(items[i]), "treeMenu_opened")
          && items[i].getElementsByTagName("ul").length
            + items[i].getElementsByTagName("ol").length > 0) {
        var classes = treeMenu_getClasses(items[i]);
        if(array.length > 0 && array[0] == i) {
          classes.push("treeMenu_opened")
        }
        else {
          classes.push("treeMenu_closed")
        }
        items[i].className = classes.join(" ");
        if(array.length > 0 && array[0] == i) {
          array.shift();
        }
      }
    }
  }

  /*
   * Ändert die Klasse eines angeclickten Listenelements, sodass
   * geöffnete Menüpunkte geschlossen und geschlossene geöffnet
   * werden.
   *
   * event: Das Event Objekt, dass der Browser übergibt.
   */
  function treeMenu_handleClick(event) {
    if(event == null) { //Workaround für die fehlenden DOM Eigenschaften im IE
      event = window.event;
      event.currentTarget = event.srcElement;
      while(event.currentTarget.nodeName.toLowerCase() != "li") {
        event.currentTarget = event.currentTarget.parentNode;
      }
      event.cancelBubble = true;
    }
    else {
      event.stopPropagation();
    }
    var array = treeMenu_getClasses(event.currentTarget);
    for(var i = 0; i < array.length; i++) {
      if(array[i] == "treeMenu_closed") {
        array[i] = "treeMenu_opened";
      }
      else if(array[i] == "treeMenu_opened") {
        array[i] = "treeMenu_closed"
      }
    }
    event.currentTarget.className = array.join(" ");
  }

  /*
   * Gibt alle Klassen zurück, die einem HTML-Element zugeordnet sind.
   *
   * element: Das HTML-Element
   * return: Die zugeordneten Klassen.
   */
  function treeMenu_getClasses(element) {
    if(element.className) {
      return element.className.match(/[^ \t\n\r]+/g);
    }
    else {
      return new Array(0);
    }
  }

  /*
   * Überprüft, ob ein Array ein bestimmtes Element enthält.
   *
   * array: Das Array
   * element: Das Element
   * return: true, wenn das Array das Element enthält.
   */
  function treeMenu_contains(array, element) {
    for(var i = 0; i < array.length; i++) {
      if(array[i] == element) {
        return true;
      }
    }
    return false;
  }

  /*
   * Gibt einen String zurück, indem die Nummern aller geöffneten
   * Menüpunkte stehen.
   *
   * menu: Referenz auf die Liste
   * return: Der String
   */
  function treeMenu_store(menu) {
    var result = new Array();;
    var items = menu.getElementsByTagName("li");
    for(var i = 0; i < items.length; i++) {
      if(treeMenu_contains(treeMenu_getClasses(items[i]), "treeMenu_opened")) {
        result.push(i);
      }
    }
    return result.join(" ");
  }




function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}