browserName=navigator.appName; 
browserVer=parseInt(navigator.appVersion);

  if ((browserName=="Netscape" && browserVer>=3) || (browserName=="Microsoft Internet Explorer" && browserVer>=4))    
  version="n3";
  else
    version="n2";

  if (version=="n3")
   {
     pic1on= new Image();
     pic1on.src="/images/traveltv/icons/about_on.gif";  
     pic2on= new Image(); 
     pic2on.src="/images/traveltv/icons/activities_on.gif"; 
     pic3on= new Image(); 
     pic3on.src="/images/traveltv/icons/dining_on.gif"; 
     pic4on= new Image(); 
     pic4on.src="/images/traveltv/icons/lodging_on.gif"; 
     pic5on= new Image(); 
     pic5on.src="/images/traveltv/icons/real_estate_on.gif"; 
     pic6on= new Image(); 
     pic6on.src="/images/traveltv/icons/events_on.gif"; 
     pic7on= new Image(); 
     pic7on.src="/images/traveltv/icons/locals_on.gif"; 
     pic8on= new Image(); 
     pic8on.src="/images/traveltv/icons/advertise_on.gif"; 
     searchbuton= new Image(); 
     searchbuton.src="/images/traveltv/icons/magnify_orang.gif"; 
     
     pic1off= new Image();
     pic1off.src="/images/traveltv/icons/about.gif";  
     pic2off= new Image(); 
     pic2off.src="/images/traveltv/icons/activities.gif"; 
     pic3off= new Image(); 
     pic3off.src="/images/traveltv/icons/dining.gif"; 
     pic4off= new Image(); 
     pic4off.src="/images/traveltv/icons/lodging.gif"; 
     pic5off= new Image(); 
     pic5off.src="/images/traveltv/icons/real_estate.gif"; 
     pic6off= new Image(); 
     pic6off.src="/images/traveltv/icons/events.gif"; 
     pic7off= new Image(); 
     pic7off.src="/images/traveltv/icons/locals.gif"; 
     pic8off= new Image(); 
     pic8off.src="/images/traveltv/icons/advertise.gif"; 
     searchbutoff= new Image(); 
     searchbutoff.src="/images/traveltv/icons/magnify.gif"; 
   }

function closesub1() { document.getElementById('submenu1').style.display='none'; }
function closesub2() { document.getElementById('submenu2').style.display='none'; }
function closesub3() { document.getElementById('submenu3').style.display='none'; }
function closesub4() { document.getElementById('submenu4').style.display='none'; }
function closesub5() { document.getElementById('submenu5').style.display='none'; }
function closesub6() { document.getElementById('submenu6').style.display='none'; }

function closemain1() { document['pic1'].src= pic1off.src; }
function closemain2() { document['pic2'].src= pic2off.src; }
function closemain3() { document['pic3'].src= pic3off.src; }
function closemain4() { document['pic4'].src= pic4off.src; }
function closemain5() { document['pic5'].src= pic5off.src; }
function closemain6() { document['pic6'].src= pic6off.src; }
function closemain7() { document['pic7'].src= pic7off.src; }
function closemain8() { document['pic8'].src= pic8off.src; }

function lightup(imgName, menuID)
 {
   if (version=="n3")
    {
      imgOn=eval(imgName + "on.src");
      document[imgName].src= imgOn;
      
      if (menuID != "searchbut") {
        if (menuID!="submenu7" && menuID!="submenu8") { document.getElementById(menuID).style.display = "block"; }
        if (menuID!="submenu1") { closesub1(); }
        if (menuID!="submenu2") { closesub2(); }
        if (menuID!="submenu3") { closesub3(); }
        if (menuID!="submenu4") { closesub4(); }
        if (menuID!="submenu5") { closesub5(); }
        if (menuID!="submenu6") { closesub6(); }
     
        if (imgName!="pic1") { closemain1(); }
        if (imgName!="pic2") { closemain2(); }
        if (imgName!="pic3") { closemain3(); }
        if (imgName!="pic4") { closemain4(); }
        if (imgName!="pic5") { closemain5(); }
        if (imgName!="pic6") { closemain6(); }
        if (imgName!="pic7") { closemain7(); }
        if (imgName!="pic8") { closemain8(); }
      }
      
    }
 }

function turnoff(imgName)
 {
   if (version=="n3")
    {
      imgOff=eval(imgName + "off.src");
      document[imgName].src= imgOff;
    }
 }