<!--

function Is() {
  var agent = navigator.userAgent.toLowerCase();
  this.major = parseInt(navigator.appVersion);
  this.minor = parseFloat(navigator.appVersion);
  this.ns = ((agent.indexOf('mozilla')!=-1) &&
((agent.indexOf('spoofer')==-1) &&
(agent.indexOf('compatible') == -1)));
  this.ns2 = (this.ns && (this.major == 3));
  this.ns3 = (this.ns && (this.major == 3));
  this.ns4b = (this.ns && (this.minor < 4.04));
  this.ns4 = (this.ns && (this.major >= 4));
  this.ns6 = (this.ns && (this.major >= 5));
  this.ie = (agent.indexOf("msie") != -1);
  this.ie3 = (this.ie && (this.major == 2));
  this.ie4 = (this.ie && (this.major >= 4));
  this.ie5 = (this.ie && (this.major >= 5));
  this.op3 = (agent.indexOf("opera") != -1);
  this.win = (agent.indexOf("win")!=-1);
  this.mac = (agent.indexOf("mac")!=-1);
  this.unix = (agent.indexOf("x11")!=-1);
}

var is = new Is()

function an(imgName)  

         {
              if (is.ie4 || is.ns4)   
                      {
                            imgOn = eval(imgName + "on.src");
                            document [imgName].src = imgOn;
                      }
         }

function aus(imgName)   

         {
              if (is.ie4 || is.ns4) 
                      {
                            imgOff = eval(imgName + "off.src");
                            document [imgName].src = imgOff;
                      }
         }

function Fenster(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

// -->