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;
}
if (getAppVersion()) {
   wait = new Image();
   wait.src = "images/loading.gif";
}