bName = navigator.appName;
bVersion = parseInt(navigator.appVersion);
if (bName == "Netscape" && bVersion >= 3) display = "on";
else if (bName == "Microsoft Internet Explorer" && bVersion>= 4) display="on";
else display = "off";

if (display == "on")  {
	products0 = new Image(81, 19); products0.src = "gr/main/nav_products0.gif";
	products1 = new Image(81, 19); products1.src = "gr/main/nav_products1.gif";
	services0 = new Image(78, 19); services0.src = "gr/main/nav_services0.gif";
	services1 = new Image(78, 19); services1.src = "gr/main/nav_services1.gif";
	faq0 = new Image(46, 19); faq0.src = "gr/main/nav_faq0.gif";
	faq1 = new Image(46, 19); faq1.src = "gr/main/nav_faq1.gif";
	company0 = new Image(78, 19); company0.src = "gr/main/nav_company0.gif";
	company1 = new Image(78, 19); company1.src = "gr/main/nav_company1.gif";
	contact0 = new Image(60, 19); contact0.src = "gr/main/nav_contact0.gif";
	contact1 = new Image(60, 19); contact1.src = "gr/main/nav_contact1.gif";
	myaccount0 = new Image(143, 19); myaccount0.src = "gr/main/nav_myaccount0.gif";
	myaccount1 = new Image(143, 19); myaccount1.src = "gr/main/nav_myaccount1.gif";
	freetrial0 = new Image(143, 19); freetrial0.src = "gr/main/nav_freetrial0.gif";
	freetrial1 = new Image(143, 19); freetrial1.src = "gr/main/nav_freetrial1.gif";
	affiliate0 = new Image(143, 19); affiliate0.src = "gr/main/nav_affiliate0.gif";
	affiliate1 = new Image(143, 19); affiliate1.src = "gr/main/nav_affiliate1.gif";
	email0 = new Image(63, 19); email0.src = "gr/main/nav_email0.gif";
	email1 = new Image(63, 19); email1.src = "gr/main/nav_email1.gif";
}

function displayOn(side)  {
	if (display == "on") {
		document [side].src = eval(side + "1.src");
	}
}

function displayOff(side)  {
	if ((display == "on")) { // && (currentpage != side)) {
		document [side].src = eval(side + "0.src");
	}
}

function init_nav()  {
	if (currentpage != '') {
		document [currentpage].src = eval(currentpage + "1.src");
	}
}