TotalNumerOfURLs = 15;

function MakeArray(n) {
   this.length = n;
   for (var i = 1; i <= n; i++) { 
     this[i] = 0 }
     return this;
   }

AddressToGo = new MakeArray(TotalNumerOfURLs);

var dt = new Date();
// var RandomNumber = (dt.getSeconds()%TotalNumerOfURLs)+1;
var RandomNumber = (dt.getMilliseconds()%TotalNumerOfURLs)+1;

AddressToGo[1] = "#";
AddressToGo[2] = "#";
AddressToGo[3] = "#";
AddressToGo[4] = "#";
AddressToGo[5] = "#";
AddressToGo[6] = "#";
AddressToGo[7] = "#";
AddressToGo[8] = "#";
AddressToGo[9] = "#";
AddressToGo[10] = "#";
AddressToGo[11] = "#";
AddressToGo[12] = "#";
AddressToGo[13] = "#";
AddressToGo[14] = "#";
AddressToGo[15] = "#";

function ShowTheBanner() {  
   document.write('<style type="text/css">#header{background:url(wertpapierwelt-', RandomNumber, '.jpg) no-repeat top right;margin:0px;padding:0px;}</style>');
   }
ShowTheBanner();