function versionChk(image) {
if (navigator.appName == "Microsoft Internet Explorer"){
	n = navigator.userAgent;
	explorerVersion = n.substr(n.indexOf("MSIE ")+("MSIE ").length, 4);
	explorerVersion = parseFloat(explorerVersion);
	if (explorerVersion < 5.5)
		document.write("<img src='" + image + "' usemap='#navmapsub' width='493' height='20' border='0' alt=''>");
	else
		generate_mainitems();
}
else
	generate_mainitems();
}