function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function getLayerRef ( /* String */ id, 
                       /* optional HTML-Object */ document) {
  if (!document)
    document = window.document;


  if (document.layers) {
    for (var l = 0; l < document.layers.length; l++)
      if (document.layers[l].id == id)
        return document.layers[l];
    for (var l = 0; l < document.layers.length; l++) {
      var result = getLayerRef(id, document.layers[l].document);
      if (result)
        return result;
    }
    return null;
  } else if (document.all) {
    return document.all[id];
  } else if (document.getElementById) {
    return document.getElementById(id);
  }
}	
	
function setVisibility( /* Layer */ objLayer, 
                        /* boolean */ visible ) {

  if(document.layers){
    objLayer.visibility  = 
        (visible == true) ? 'show' : 'hide';
  } else {
    objLayer.style.visibility = 
        (visible == true) ? 'visible' : 'hidden';
  }

}