function VersionNavigateur(Netscape, Explorer) {
  if ((navigator.appVersion.substring(0,3) >= Netscape && navigator.appName == 'Netscape') ||      
      (navigator.appVersion.substring(0,3) >= Explorer && navigator.appName.substring(0,9) == 'Microsoft'))
    return true;
else return false;
}

<!-- hide from non-Java browsers>
var bannerID=0  //create a global variable named bannerID.

function banner(msg,ctrlwidth) {
        // bring msg width to form control width.
        msg = "     "+msg
        newmsg = msg
        while (newmsg.length < ctrlwidth) {
                newmsg += msg
        }
        // Set up the form and form field.
        //document.write ('<FORM NAME="Banner">')
        document.write ('<CENTER><INPUT NAME="banner" VALUE= "'+newmsg+'" SIZE= '+ctrlwidth+'></CENTER>')
        //document.write ('</FORM>')
        var bannerID = null
        rollmsg()       //get the banner rolling
}
function rollmsg() {
      NowMsg=document.idx_form.banner.value
        NowMsg=NowMsg.substring(1,NowMsg.length)+NowMsg.substring(0,1)
        document.idx_form.banner.value = NowMsg
        bannerID=setTimeout("rollmsg()",150) 
}

<!-- navigation Script -->
if (document.images) {
  nav = new makeimgarray(3);
  nav2 = new makeimgarray(3);

  nav[  0].src = "./pics/nccglogo.gif";
  nav2[ 0].src = "./pics/nccglogo.gif";
  nav[  1].src = "./pics/ftcbutton.gif";
  nav2[ 1].src = "./pics/ftcbutton.gif";
  nav[  2].src  = "./pics/flcrbanner.gif";
  nav2[ 2].src = "./pics/flcrbanner.gif";
}

function makeimgarray(num) {  
  this.length = num;
  for (var i = 0;i <= num + 1; i++) {
    this[i] = new Image();
  }
  return this;
}

function nav_mover(num) {
    if (document.images) {
        document.images['evt' + num + 'nav'].src = nav2[num].src;
    }
}

function nav_moff(num) {
    if (document.images) {
        document.images['evt' + num + 'nav'].src = nav[num].src;
    }
}