window.onload = function() {
  menuMarker();
  ImageHandler.randomImage();
  ImageHandler.preloadImage();
}

var sections = new Array( "newsletter",
                          "ueber-uns",
                          "der-vorstand");

function menuMarker() {
  var location = document.location.toString();
  var sectionRegExp = /http:\/\/(dgaepc.de|www.dgaepc.de)\//;
  var slashRegExp = /\//;
  var anchorRegExp = /#[a-z0-9\-_]*/;
  var path = location.replace(sectionRegExp, "").replace(slashRegExp, "_").replace(anchorRegExp, "");
  if (path == "") {
    document.getElementById("startseite").style.listStyleImage = "url( 'http://dgaepc.de//pics/arrow_s.gif' )";
  }
  else {
    var pathExceptions = ["patienteninfos_gesichtschirurgie", 
                          "patienteninfos_koerperformung", 
                          "patienteninfos_op-vorbereitung-und-nachsorge", 
                          "patienteninfos_finanzierung", 
                          "patienteninfos_sonderthemen"];
                          
    for (var i=0; i < pathExceptions.length; i++) {
      if (pathExceptions[i] == path) {
        path = "patienteninfos_information"
      }
    }
    document.getElementById(path).style.listStyleImage = "url( 'http://dgaepc.de//pics/arrow_s.gif' )";
  }
}

var ImageHandler = {
  imagePath : "/pics/menu-back/",
  count : 8,
  ImageArray : new Array(),
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    if (document.images) {
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    }
  },
  randomImage : function() {
    var randomNumber = Math.floor(Math.random()*ImageHandler.count);
		var bild = document.getElementById('menu_content');
		bild.style.backgroundImage = "url(" + ImageHandler.imagePath + "pic" + randomNumber + ".jpg)";
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}