if(document.images){
var offImgArray=new Array();

	offImgArray["home"]=new Image(91,25)
	offImgArray["destinations"]=new Image(110,25)
	offImgArray["specialOffers"]=new Image(113,25)
	offImgArray["themePackages"]=new Image(125,25)

	offImgArray["home"].src="images/nav1_home.gif"
	offImgArray["destinations"].src="images/nav2_destinations.gif"
	offImgArray["specialOffers"].src="images/nav3_special.gif"
	offImgArray["themePackages"].src="images/nav4_theme.gif"

var onImgArray = new Array();

	onImgArray["home"]=new Image(91,25)
	onImgArray["destinations"]=new Image(110,25)
	onImgArray["specialOffers"]=new Image(113,25)
	onImgArray["themePackages"]=new Image(125,25)
	
	onImgArray["home"].src="images/nav1_homeON.gif"
	onImgArray["destinations"].src="images/nav2_destinationsON.gif"
	onImgArray["specialOffers"].src="images/nav3_specialON.gif"
	onImgArray["themePackages"].src="images/nav4_themeON.gif"
}

function swapOn(imgName) {
	if(document.images) {
		document.images[imgName].src=onImgArray[imgName].src
			}
}
function swapOff(imgName) {
	if (document.images) {
		document.images[imgName].src=offImgArray[imgName].src
		}
}