function Bildwechsel(Bildnr,Bildobjekt)
{
 window.document.images[Bildnr].src = Bildobjekt.src;
}

function Menue(x) {
noMenue();

 if(DOM || MS) {
   getElem("id","Nav"+[x],null).style.visibility = "visible";
 }
 else if(NS) {
  getElem("id","Nav"+[x],null).visibility = "show";
 }
}

function noMenue() {
 if(DOM || MS) {
   getElem("id","Nav1",null).style.visibility = "hidden";
   getElem("id","Nav2",null).style.visibility = "hidden";
   getElem("id","Nav3",null).style.visibility = "hidden";
   getElem("id","Nav4",null).style.visibility = "hidden";
   getElem("id","Nav5",null).style.visibility = "hidden";
   getElem("id","Nav6",null).style.visibility = "hidden";
   getElem("id","Nav7",null).style.visibility = "hidden";
   }
else if(NS){
  getElem("id","Nav1",null).visibility = "hide";
  getElem("id","Nav2",null).visibility = "hide";
  getElem("id","Nav3",null).visibility = "hide";
  getElem("id","Nav4",null).visibility = "hide";
  getElem("id","Nav5",null).visibility = "hide";
  getElem("id","Nav6",null).visibility = "hide";
  getElem("id","Nav7",null).visibility = "hide";
  }
}

function Start()
{

 if(DOM||MS) 
 {

  if (MS||(DOM&&MS)) 
  {
  getElem("id","Haupt",null).style.top = 0;
  getElem("id","Haupt",null).style.left = ((document.body.offsetWidth-999)/2);
  }
  if (DOM&&!MS)
  {
  getElem("id","Haupt",null).style.top =  0;
  getElem("id","Haupt",null).style.left = ((window.innerWidth-999)/2);
  }
   if (OP) 
   {
   getElem("id","Haupt",null).style.pixelTop = 0;
   getElem("id","Haupt",null).style.pixelLeft = ((document.body.offsetWidth-999)/2);
   }
   getElem("id","Haupt",null).style.visibility = "visible";
 }
 
 
 else if(NS) {
  getElem("id","Haupt",null).top = 0;
  getElem("id","Haupt",null).left = ((window.innerWidth-999)/2);
  getElem("id","Haupt",null).visibility = "show";
 }
 
}