if (document.images) {
	servicesOff = new Image
	custcareOff = new Image
	billingOff = new Image
	aboutusOff = new Image
	newsOff = new Image
	contactOff = new Image
                
	servicesOn = new Image
	custcareOn = new Image
	billingOn = new Image
	aboutusOn = new Image
	newsOn = new Image
	contactOn = new Image

	servicesOff.src = "/images/nav_services_off.gif"
	custcareOff.src = "/images/nav_custcare_off.gif"
	billingOff.src = "/images/nav_billing_off.gif"
	aboutusOff.src = "/images/nav_aboutus_off.gif"
	newsOff.src = "/images/nav_news_off.gif"
	contactOff.src = "/images/nav_contact_off.gif"

	servicesOn.src = "/images/nav_services_on.gif"
	custcareOn.src = "/images/nav_custcare_on.gif"
	billingOn.src = "/images/nav_billing_on.gif"
	aboutusOn.src = "/images/nav_aboutus_on.gif"
	newsOn.src = "/images/nav_news_on.gif"
	contactOn.src = "/images/nav_contact_on.gif"

}

function chgImg(imgField,newImg) {
	if (document.images) {
		document[imgField].src= eval(newImg + ".src")
	}
}