function Zentrieren() {

var zahl=(document.body.offsetWidth-630)/2;

var links=zahl.toString(10);
if(links<0)links=0;
links=zahl+"px";

var zahl1=(document.body.offsetWidth-125)/2;

var links1=zahl1.toString(10);

links1=zahl1+"px";

document.getElementById("welt").style.left = links;
document.getElementById("link").style.left = links1;


document.getElementById("regionwinter").style.left = links;
document.getElementById("regionsubtrop").style.left = links;
document.getElementById("regiontrop").style.left = links;
document.getElementById("regionknollen").style.left = links;
document.getElementById("regionzwerg").style.left = links;
document.getElementById("regionpetio").style.left = links;
document.getElementById("regionkap").style.left = links;
document.getElementById("regionqueen").style.left = links;
document.getElementById("regiongabel").style.left = links;
document.getElementById("regionalle").style.left = links;

}

function RegionWinter() {
document.getElementById("regionwinter").style.zIndex = "10";
document.getElementById("regionsubtrop").style.zIndex = "1";
document.getElementById("regiontrop").style.zIndex = "1";
document.getElementById("regionknollen").style.zIndex = "1";
document.getElementById("regionzwerg").style.zIndex = "1";
document.getElementById("regionpetio").style.zIndex = "1";
document.getElementById("regionkap").style.zIndex = "1";
document.getElementById("regionqueen").style.zIndex = "1";
document.getElementById("regiongabel").style.zIndex = "1";
document.getElementById("regionalle").style.zIndex = "1";
 }

function RegionSubTrop() {
document.getElementById("regionwinter").style.zIndex = "1";
document.getElementById("regionsubtrop").style.zIndex = "10";
document.getElementById("regiontrop").style.zIndex = "1";
document.getElementById("regionknollen").style.zIndex = "1";
document.getElementById("regionzwerg").style.zIndex = "1";
document.getElementById("regionpetio").style.zIndex = "1";
document.getElementById("regionkap").style.zIndex = "1";
document.getElementById("regionqueen").style.zIndex = "1";
document.getElementById("regiongabel").style.zIndex = "1";
document.getElementById("regionalle").style.zIndex = "1";
 }

function RegionTrop() {
document.getElementById("regionwinter").style.zIndex = "1";
document.getElementById("regionsubtrop").style.zIndex = "1";
document.getElementById("regiontrop").style.zIndex = "10";
document.getElementById("regionknollen").style.zIndex = "1";
document.getElementById("regionzwerg").style.zIndex = "1";
document.getElementById("regionpetio").style.zIndex = "1";
document.getElementById("regionkap").style.zIndex = "1";
document.getElementById("regionqueen").style.zIndex = "1";
document.getElementById("regiongabel").style.zIndex = "1";
document.getElementById("regionalle").style.zIndex = "1";
 }

function RegionKnollen() {
document.getElementById("regionwinter").style.zIndex = "1";
document.getElementById("regionsubtrop").style.zIndex = "1";
document.getElementById("regiontrop").style.zIndex = "1";
document.getElementById("regionknollen").style.zIndex = "10";
document.getElementById("regionzwerg").style.zIndex = "1";
document.getElementById("regionpetio").style.zIndex = "1";
document.getElementById("regionkap").style.zIndex = "1";
document.getElementById("regionqueen").style.zIndex = "1";
document.getElementById("regiongabel").style.zIndex = "1";
document.getElementById("regionalle").style.zIndex = "1";
 }

function RegionZwerg() {
document.getElementById("regionwinter").style.zIndex = "1";
document.getElementById("regionsubtrop").style.zIndex = "1";
document.getElementById("regiontrop").style.zIndex = "1";
document.getElementById("regionknollen").style.zIndex = "1";
document.getElementById("regionzwerg").style.zIndex = "10";
document.getElementById("regionpetio").style.zIndex = "1";
document.getElementById("regionkap").style.zIndex = "1";
document.getElementById("regionqueen").style.zIndex = "1";
document.getElementById("regiongabel").style.zIndex = "1";
document.getElementById("regionalle").style.zIndex = "1";
 }

function RegionPetio() {
document.getElementById("regionwinter").style.zIndex = "1";
document.getElementById("regionsubtrop").style.zIndex = "1";
document.getElementById("regiontrop").style.zIndex = "1";
document.getElementById("regionknollen").style.zIndex = "1";
document.getElementById("regionzwerg").style.zIndex = "1";
document.getElementById("regionpetio").style.zIndex = "10";
document.getElementById("regionkap").style.zIndex = "1";
document.getElementById("regionqueen").style.zIndex = "1";
document.getElementById("regiongabel").style.zIndex = "1";
document.getElementById("regionalle").style.zIndex = "1";
 }

function RegionKap() {
document.getElementById("regionwinter").style.zIndex = "1";
document.getElementById("regionsubtrop").style.zIndex = "1";
document.getElementById("regiontrop").style.zIndex = "1";
document.getElementById("regionknollen").style.zIndex = "1";
document.getElementById("regionzwerg").style.zIndex = "1";
document.getElementById("regionpetio").style.zIndex = "1";
document.getElementById("regionkap").style.zIndex = "10";
document.getElementById("regionqueen").style.zIndex = "1";
document.getElementById("regiongabel").style.zIndex = "1";
document.getElementById("regionalle").style.zIndex = "1";
 }

function RegionQueen() {
document.getElementById("regionwinter").style.zIndex = "1";
document.getElementById("regionsubtrop").style.zIndex = "1";
document.getElementById("regiontrop").style.zIndex = "1";
document.getElementById("regionknollen").style.zIndex = "1";
document.getElementById("regionzwerg").style.zIndex = "1";
document.getElementById("regionpetio").style.zIndex = "1";
document.getElementById("regionkap").style.zIndex = "1";
document.getElementById("regionqueen").style.zIndex = "10";
document.getElementById("regiongabel").style.zIndex = "1";
document.getElementById("regionalle").style.zIndex = "1";
 }

function RegionGabel() {
document.getElementById("regionwinter").style.zIndex = "1";
document.getElementById("regionsubtrop").style.zIndex = "1";
document.getElementById("regiontrop").style.zIndex = "1";
document.getElementById("regionknollen").style.zIndex = "1";
document.getElementById("regionzwerg").style.zIndex = "1";
document.getElementById("regionpetio").style.zIndex = "1";
document.getElementById("regionkap").style.zIndex = "1";
document.getElementById("regionqueen").style.zIndex = "1";
document.getElementById("regiongabel").style.zIndex = "10";
document.getElementById("regionalle").style.zIndex = "1";
 }


function RegionAlle() {
document.getElementById("regionwinter").style.zIndex = "1";
document.getElementById("regionsubtrop").style.zIndex = "1";
document.getElementById("regiontrop").style.zIndex = "1";
document.getElementById("regionknollen").style.zIndex = "1";
document.getElementById("regionzwerg").style.zIndex = "1";
document.getElementById("regionpetio").style.zIndex = "1";
document.getElementById("regionkap").style.zIndex = "1";
document.getElementById("regionqueen").style.zIndex = "1";
document.getElementById("regiongabel").style.zIndex = "1";
document.getElementById("regionalle").style.zIndex = "10";
 }