var impressum="location=no,menubar=no,toolbar=no,status=no";
impressum+="resizable=no,scrollbars=no,width=358,height=480";

var anfahrt="location=no,menubar=no,toolbar=no,status=no";
anfahrt+="resizable=no,scrollbars=no,width=628,height=699";

var subwindow=0;

function ClosePopUp()
{
  if (!subwindow)
    return;
  if (subwindow.closed)
    return;
  subwindow.close();
}

function PopUp_impressum()
{
  ClosePopUp()
  subwindow=window.open("impressum.html","popup",impressum);
  subwindow.moveTo(10,50);
}

function PopUp_anfahrt()
{
  ClosePopUp()
  subwindow=window.open("anfahrt.html","popup",anfahrt);
  subwindow.moveTo(10,50);
}

function surfto(form) {
var myindex=form.dest.selectedIndex
window.open(form.dest.options[myindex].value, target="iframe");
}