capable = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))
        
if (capable) {
	tb_home_off = new Image
	tb_home_off.src = "images/MenuBar/home_off.gif"
	tb_home_on = new Image
	tb_home_on.src = "images/MenuBar/home_on.gif"

	tb_aboutbrantas_off = new Image
	tb_aboutbrantas_off.src = "images/MenuBar/aboutbrantas_off.gif"
	tb_aboutbrantas_on = new Image
	tb_aboutbrantas_on.src = "images/MenuBar/aboutbrantas_on.gif"

	tb_productsandservices_off = new Image
	tb_productsandservices_off.src = "images/MenuBar/productsandservices_off.gif"
	tb_productsandservices_on = new Image
	tb_productsandservices_on.src = "images/MenuBar/productsandservices_on.gif"

	tb_customers_off = new Image
	tb_customers_off.src = "images/MenuBar/customers_off.gif"
	tb_customers_on = new Image
	tb_customers_on.src = "images/MenuBar/customers_on.gif"

	tb_contactus_off = new Image
	tb_contactus_off.src = "images/MenuBar/contactus_off.gif"
	tb_contactus_on = new Image
	tb_contactus_on.src = "images/MenuBar/contactus_on.gif"
}

function img_on(imgName) {
	if (capable) {
		imgOn = eval(imgName + "_on.src")
		document [imgName].src = imgOn
	}
}

function img_off(imgName) {
	if (capable) {
		imgOff = eval(imgName + "_off.src")
		document [imgName].src = imgOff
	}
}