function preloadNav()
{
	if (document.images)
	{
		sspage1on = new Image();
		sspage1on.src = "images/nav_home_on.gif";

		sspage1off = new Image();
		sspage1off.src = "images/nav_home_off.gif";
		
		sspage2on = new Image();
		sspage2on.src = "images/nav_whatwedo_on.gif";

		sspage2off = new Image();
		sspage2off.src = "images/nav_whatwedo_off.gif";
		
		sspage3on = new Image();
		sspage3on.src = "images/nav_covered_on.gif";

		sspage3off = new Image();
		sspage3off.src = "images/nav_covered_off.gif";
		
		sspage4on = new Image();
		sspage4on.src = "images/nav_limits_on.gif";

		sspage4off = new Image();
		sspage4off.src = "images/nav_limits_off.gif";
		
		sspage5on = new Image();
		sspage5on.src = "images/nav_faq_on.gif";

		sspage5off = new Image();
		sspage5off.src = "images/nav_faq_off.gif";
		
		sspage6on = new Image();
		sspage6on.src = "images/nav_status_on.gif";

		sspage6off = new Image();
		sspage6off.src = "images/nav_status_off.gif";
		
		sspage7on = new Image();
		sspage7on.src = "images/nav_contact_on.gif";

		sspage7off = new Image();
		sspage7off.src = "images/nav_contact_off.gif";


	}
	return true;
}

function imgOn(imgName){
		if(document.images){
			document[imgName].src = eval(imgName + "on.src");
			}
}

function imgOff(imgName){
		if(document.images){
			document[imgName].src = eval(imgName + "off.src");
			}
}