if (document.images) {
   	home_off = new Image();
   	home_off.src = "images/nav_home-off.gif";
   	home_on = new Image();
   	home_on.src = "images/nav_home-on.gif";

   	amenities_off = new Image();
   	amenities_off.src = "images/nav_amenities-off.gif";
   	amenities_on = new Image();
   	amenities_on.src = "images/nav_amenities-on.gif";

   	locationT_off = new Image();
   	locationT_off.src = "images/nav_location-off.gif";
   	locationT_on = new Image();
   	locationT_on.src = "images/nav_location-on.gif";
   	
   	contact_off = new Image();
   	contact_off.src = "images/nav_contact-off.gif";
   	contact_on = new Image();
   	contact_on.src = "images/nav_contact-on.gif";   	
   	   	
   	pricing_off = new Image();
   	pricing_off.src = "images/nav_pricing-plans-off.gif";
   	pricing_on = new Image();
   	pricing_on.src = "images/nav_pricing-plans-on.gif";  
}

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")
   	}
}