window.onerror = null;
  window.defaultStatus = '';
  var bName  = navigator.appName;
  var bVer   = parseInt(navigator.appVersion);
  var NS4    = (bName == "Netscape" && bVer >= 4);
  var IE4    = (bName == "Microsoft Internet Explorer" && bVer >= 4);
  var NS3    = (bName == "Netscape" && bVer < 4);
  var IE3    = (bName == "Microsoft Internet Explorer" && bVer < 4);

  var loaded = 0; 
  var selected = 0;
  if ( IE4 ) LoadImgs();

 function OnInit() { LoadImgs(); }

 function LoadImgs() {
  //if ( document.images ) { loaded = 1; }
  if ( loaded == 0 )
  if ( document.images && (NS4 || IE4) ) {
    loaded = 0;
          imgB1w  = new Image(); imgB1w.src  = "bio-w.gif";
          imgB1b  = new Image(); imgB1b.src  = "bio-b.gif";
          imgB2w  = new Image(); imgB2w.src  = "photo-w.gif";
          imgB2b  = new Image(); imgB2b.src  = "photo-b.gif";
          imgB3w  = new Image(); imgB3w.src  = "press-w.gif";
          imgB3b  = new Image(); imgB3b.src  = "press-b.gif";
          imgB4w  = new Image(); imgB4w.src  = "mail-w.gif";
          imgB4b  = new Image(); imgB4b.src  = "mail-b.gif";
          imgB5w  = new Image(); imgB5w.src  = "search-w.gif";
          imgB5b  = new Image(); imgB5b.src  = "search-b.gif";
    loaded = 1;
  }
 }  

 function Button(ButtonNo,What) {
  var btnName;
  if ( document.images && (loaded == 1) ) {
    if ( NS4 || IE4 ) {
      btnName    = "btnB" + ButtonNo;
      document[ btnName ].src = eval( "imgB"+ButtonNo+What+".src");
    }
  }
  return true;
 }

 function MenuHide() {
   var btnName;
   var btnPicture;
   if ( selected != 0 ) {
     Button(selected,"w");
     selected = 0;
   }
   return true;
 }


 function MenuSelect(MenuIndex) {
   var btnName;
   var btnPicture;
   if ( selected != MenuIndex ) {
     if ( selected ) {
       Button(selected,"w");
     }
     selected   = MenuIndex;
     Button(selected,"b");
   }
   return true;
 }