/* Für Sidebar-Tripleteaser*/
function triplight($el) {
  var $dt = $el.parentNode;
  while ($dt && $dt.tagName != 'DL') $dt = $dt.parentNode;
  if (! $dt) return;
  var $de = $dt.firstChild;
  while ($de) {
    if ($de.className) addClassName($de,'deactivated');
    $de = $de.nextSibling;
  }
  removeClassName($el,'deactivated');
  removeClassName(($el.nextSibling.className) ? $el.nextSibling : $el.nextSibling.nextSibling,'deactivated');
  return true;
}

function addClassName ($el, $cl) {
  if ($el && $el.className.indexOf($cl) == -1) return ($el.className = ($el.className)
    ? $el.className+' '+$cl
    : $cl
  );
}

function removeClassName ($el, $cl) {
  if ($el) return ($el.className = $el.className.replace(new RegExp("\s?"+$cl+"\\b"), ''));
}

/*
 * Menuedefinition fuer die Horizontale Navigation
 */
var bo_pd_def = new Array();
var bo_pdstore = new Array();  // Aktiver Menüzweig (DOM-Elemente)
var bo_pdshow_pending = null;  // Timeout für PD-Anzeige
var bo_pdshow_node = null;     // auslösendes Element
/*
var dbgwin = window.open('','debug','width=400,height=600,scrollbars=yes,resizable=yes');
var dbg = dbgwin.document;
dbg.open('text/plain');
function debug(msg) { dbg.writeln(msg+"<br>"); dbgwin.focus(); }
*/

//
// Tabbed View für Events
//
function showTab(anchor,id) {
  var dt = anchor.parentNode;
  while (dt && dt.tagName != 'DL') dt = dt.parentNode;
  if (! dt) return;
  var el = dt.firstChild;
  var showNextDd = false;
  while (el) {
    if (el.tagName == 'DT') {
      if (el.firstChild == anchor) {
        el.firstChild.className='tabShow';
        showNextDd = true;
      }
      else {
        el.firstChild.className='tabHidden';
        showNextDd = false;
      }
    }
    if (el.tagName == 'DD')
      el.style.display = (showNextDd) ? 'block' : 'none';
    el = el.nextSibling;
  }
 }


// objekt für menüitem definition
//
// inner - anker html
// href - link url
// sub - id des zu öffnenden submenüs
function bo_item (inner, href, endung, sub) {
  this.inner = inner;
  this.href = href;
  this.endung = endung;
  this.sub = sub;
}


function bo_pdover_delayed(ev) {
  window.clearTimeout(bo_pdshow_pending);
  bo_pdshow_node = (ev) ? ev.currentTarget : event.srcElement;
  if (bo_pdstore && bo_pdstore.length > 0)
    bo_pdover();
  else
    bo_pdshow_pending = window.setTimeout("bo_pdover()", 300);
}

function bo_pdover() {
  if (! bo_pdshow_node) return;
  var el = (bo_pdshow_node.tagName == "A") ? bo_pdshow_node.parentNode.lastChild :  bo_pdshow_node.lastChild;

  if (bo_pdshow_pending) {
    window.clearTimeout(bo_pdshow_pending);
    bo_pdshow_pending = null;
    bo_pdshow_node = null;
  }

  if (el && el != bo_pdstore[0] && el.className == "bopd" && el.tagName == "UL" && el.style) {

    // aktiven Menüzweig ermitteln
    var pdstore = Array();
    pdstore.push(el);
    while (null != (el = el.parentNode))
      if (el && el.tagName == "UL" || el.className == "bopd") pdstore.push(el);

    // überflüssige Submenüs ausblenden
    while(pdstore.length <= bo_pdstore.length)
      bo_pdstore.shift().style.display = "none";

    // nicht aktive Menüs ausblenden
    for(var i=0; i<pdstore.length && i<bo_pdstore.length; i++)
      if(pdstore[i] != bo_pdstore[i])
        bo_pdstore[i].style.display = "none";

    // aktive Menüs einblenden
    for (var i=0; i<pdstore.length; i++) {
      pdstore[i].style.zIndex = i + 100;
      pdstore[i].style.display = "block";
    }

    bo_pdstore = pdstore;
  }
  if (document.getElementById('bde_service_rectangle'))
    document.getElementById('bde_service_rectangle').style.visibility = 'hidden';
}




function bo_pdout(ev) {
  var el = (ev) ? ev.relatedTarget : event.toElement;

  if (bo_pdshow_pending) {
    window.clearTimeout(bo_pdshow_pending);
    bo_pdshow_pending = null;
    bo_pdshow_node = null;
  }

  while (el) {
    if((el.tagName == "UL" && el.className == "bopd") || el.className == "bom" || el.className == "boma") return;
    el = el.parentNode;
  }
  while (null != (el = bo_pdstore.shift())) {
    if (el.className != 'bom' && el.className != "boma")
      el.style.display = "none";
  }
  if (document.getElementById('bde_service_rectangle'))
    document.getElementById('bde_service_rectangle').style.visibility = 'visible';
  
}

function bo_add_menu(node, id, level) {
  if (! bo_pd_def[id]) return;
  
  var menu = document.createElement('ul');
  with(menu) { className = "bopd"; style.zIndex = 100 + level; }
  for (var j=0; j<bo_pd_def[id].length; j++) {
    with (bo_pd_def[id][j]) {
	   var item = document.createElement('li');
       var anchor = document.createElement('a');
       anchor.href = href.replace(/^\//, 'http://www.touristeninformation-berlin.de/');
       
	   if(!inner) continue;

	   if (inner.match(/^(\/.*?)(\|(.*))?$/)) {
         var img = document.createElement('img');
         with (img) { src = window.location.protocol+'//www.touristeninformation-berlin.de'+RegExp.$1; alt = RegExp.$3; style.borderWidth = "1px"; style.borderColor = "#888"; style.margin = "1pt"; style.marginRight = "0.5em"; style.verticalAlign = "middle"; }
         anchor.appendChild(img);
         anchor.appendChild(document.createTextNode(RegExp.$3));
       } 
	   else if (! inner.match(/<([^>]+)>([^<]*)/)) {
          anchor.appendChild(document.createTextNode(inner));
       } 
	   else {
         var tag = RegExp.$1;
		 anchor.appendChild(document.createTextNode(RegExp.$2));
         if(tag == "b") {
           anchor.style.fontWeight = "bold";
        } 
		else if(tag.match(/^hr/)) {
            with(item.style) { borderTopColor = "#888"; borderTopStyle = "groove"; borderTopWidth = "2px"; }
        }
       }
	  
      if (href.match(/^https?:/)) {
        var img = document.createElement('img');
        with(img) { 
		   src = window.location.protocol+'//www.berlin.de/.img/ml/link_extern.gif'; style.border = 'none'; 
		}
        with(anchor) { 
		  appendChild(img); target = '_blank'; 
		}
      }
      else {
	     /* merz einschub */
	     if(lang == 1 && endung == "html") anchor.href = "e_" + href;
	     else if(lang == 1 && endung == "php") endung += "?lang=1";
			
		 anchor.href += "." + endung;
		
	     /* ende merz einschub */
         anchor.target = '_top';
      }
	  
	  
      item.appendChild(anchor);
      if (sub) bo_add_menu(item, sub, level+1);
      menu.appendChild(item);
    }
  }
  node.appendChild(menu);
}


function bo_pd_init() {
  if (navigator.appName=='Microsoft Internet Explorer' && navigator.appVersion.match(/MSIE\s([\d\.]+);/) && RegExp.$1 < 5.5)
    return;

  for (var i in bo_pd_def) {
    var node = document.getElementById('bo_'+i);
    if (! node) continue;
    bo_add_menu(node, i, 1);
    node.firstChild.onmouseover = bo_pdover_delayed;
    node.firstChild.onmousout = bo_pdout;
    node.onmouseover = bo_pdover_delayed;
    node.onmouseout = bo_pdout
  }
}

var modus = 1;
var lang = 1;
window.onload = bo_pd_init;