// JavaScript Document

function getAppVersion() 
{
  appname= navigator.appName;
  appversion = navigator.appVersion;
  majorver = appversion.substring(0, 1);
  if ( (appname == "Netscape") && ( majorver >= 3 ) ) return 1;
  if ( (appname == "Microsoft Internet Explorer") && (majorver >= 4) ) return 1;
  return 0;
}

function settopimage() 
{
  if (getAppVersion()) 
  {
    parent.navig.document["topimage"].src = TopImageSrc;
  }
}