var thishost ="mediencrewduesseldorf.de";
  var thisurl ="http://www." + thishost;

  window.setTimeout("startup()", 8000);

function test() {
  alert("hello world!");
}

function createmail() {
  var mt = "mailto:"
  var at = "@";
  var info ="info" ;
  var href = mt + info + at + thishost + "?" + "subject=" + thishost;
  var wndMail = window.open(href, "_blank", "scrollbars=yes,resizable=yes,width=10,height=10"); 
  if( wndMail ) { 
    wndMail.close();     
  }; 
}

function right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}

function startup() {
//automatishce weiterleitung nach einer Sekunde
  if (right(document.getElementById('centerimage').src,14) == "/img/mcd-1.jpg") {
    goto(2);
  };
}

function kickoff() {
  if (right(document.getElementById('centerimage').src,14) == "/img/mcd-1.jpg") {
    goto(2);
    } else if (right(document.getElementById('centerimage').src,14) == "/img/mcd-5.jpg") {
    window.open ("http://www.gwsd.de/cms2/files/NEDS_KunstFlyer.pdf");
  } else if (right(document.getElementById('centerimage').src,14) == "/img/mcd-7.jpg") {
    createmail();
  } else if (right(document.getElementById('centerimage').src,14) == "/img/mcd-8.jpg") {
    goto(100);
  } else if (right(document.getElementById('centerimage').src,16) == "/img/mcd-100.jpg") {
    goto(8);
  };
}

function goto(target) {
  //alert(target);
  document.getElementById('centerimage').src = "img/mcd-" + target + ".jpg";
  reset(target);  
  if (target < 100) {
    document.getElementById('centerimage').alt = document.getElementById('nav' + target).alt;
  } else if (target == 100){
   document.getElementById('centerimage').alt = "Rechtliche Hinweise"
  };
  
  //alert(document.getElementById('centerimage').src); 
}

function reset(target) {
  //if target != 1 
  document.getElementById('nav2').src = "img/nav-2" + ".jpg";
  document.getElementById('nav3').src = "img/nav-3" + ".jpg";
  document.getElementById('nav4').src = "img/nav-4" + ".jpg";
  document.getElementById('nav5').src = "img/nav-5" + ".jpg";
  document.getElementById('nav6').src = "img/nav-6" + ".jpg";
  document.getElementById('nav7').src = "img/nav-7" + ".jpg";
  document.getElementById('nav8').src = "img/nav-8" + ".jpg"; 
  if (target < 100) {
    document.getElementById('nav'+target).src = "img/nava-" + target + ".jpg";
  };
}