function calcMwst(form) {
  if(form.mwstAnfrage.value != "") {
    var betrag = form.mwstAnfrage.value;
    if(betrag.indexOf(".")) {
      betrag = betrag.replace(".", "");
    }           
    betrag = parseInt(betrag);
  }
  // NaN?
  if(parseInt(betrag)) {
    var result = betrag*0.025862;           
    result = Math.round(result);
    document.getElementById("mwstBetrag").innerHTML = dezimal(result);
  }
  return false;
}



ieYadjust=4;
ieXadjust=0;

function adjustFrame(frame) {
  var frmTemp;
  if(document.all) {
    var w = frame.document.body.scrollWidth;
    var h = frame.document.body.scrollHeight;
    if(frame.document.body.scrollWidth > frame.document.body.offsetWidth) {
      document.all[frame.name].height = h + ieYadjust;
    }
    else {
      document.all[frame.name].height = h;
    }
  }
  else if(document.getElementById) {
    var w = frame.document.width;
    var h = frame.document.height;
    if(frame.document.body.scrollWidth > frame.document.body.offsetWidth) {
      document.getElementById(frame.name).height = h + ieYadjust;
    }
    else {
      document.getElementById(frame.name).height = h; 
    }
  }
  return false;
}



function Pos0()
{
  window.scrollTo(0,0);
}



function GetPrefix(nNumber)
{
  var prefix = "";
  if(nNumber < 10) {
    prefix = "0";
  }
  var strNumber = prefix + nNumber;
  return strNumber;
}



function DateString() {
  var time = new Date();
  var strDate = GetPrefix(time.getDate()) + "." + GetPrefix(time.getMonth()+1) + "." + time.getFullYear() + " - " + GetPrefix(time.getHours()) + ":" + GetPrefix(time.getMinutes()) + " Uhr";
  return strDate;
}

if(navigator.appVersion.indexOf("2.") != -1) {
  check = false;
}

if((navigator.appVersion.indexOf("3.") != -1) && (navigator.appName.indexOf("Explorer") != -1)) {
  check = false;
} else {
  check = true;
}



function change(nr_bild,id_button){
  if (check == true) {
    document.images[nr_bild].src = eval(id_button + ".src");
  }
}