function writeBoxDiv(ID) {

  var inlineStyle = "";
  var divHTML = "";
  
  if (!document.layers) {
    inlineStyle = ' style="visibility: hidden"';
  }

  divHTML += '<div id="' + ID + 'BoxOn"' + inlineStyle + '>' +
               '<img name="' + ID + 'boxImgOn" src="http://brokerage.onvista.sbroker.de/images/img/' + ID + '_box_on.gif" width="135" height="86">' +
             '</div>';

  return divHTML;

}


function switchVisibilty(which, isOn) {
  var visib;

  if (isOn) {
    if (document.layers) {
      visib = "show";
    } else {
      visib = "visible";
    }
  } else {
    if (document.layers) {
      visib = "hide";
    } else {
      visib = "hidden";
    }
  }

  if (document.getElementById) {
    var theLayerOn = document.getElementById(which + "BoxOn");
    theLayerOn.style.visibility = visib
  } else if (document.all) {
    document.all[which + "BoxOn"].style.visibility = visib;
  } else if (document.layers) {
    var theLayerOn = eval('document.container' + which + '.document.' + which + 'BoxOn');
    theLayerOn.visibility = visib;
  }
    
}