if (document.images) {

	nav1On = new Image();
	nav1Off = new Image();
	nav1On.src = 'images/nav_portfolio_on.gif';
	nav1Off.src = 'images/nav_portfolio.gif';

	nav2On = new Image();
	nav2Off = new Image();
	nav2On.src = 'images/nav_recentevents_on.gif';
	nav2Off.src = 'images/nav_recentevents.gif';
	
	nav3On = new Image();
	nav3Off = new Image();
	nav3On.src = 'images/nav_albums_on.gif';
	nav3Off.src = 'images/nav_albums.gif';

	nav4On = new Image();
	nav4Off = new Image();
	nav4On.src = 'images/nav_rates_on.gif';
	nav4Off.src = 'images/nav_rates.gif';
	
	nav5On = new Image();
	nav5Off = new Image();
	nav5On.src = 'images/nav_bio_on.gif';
	nav5Off.src = 'images/nav_bio.gif';
	
	nav6On = new Image();
	nav6Off = new Image();
	nav6On.src = 'images/nav_shop_on.gif';
	nav6Off.src = 'images/nav_shop.gif';

	nav7On = new Image();
	nav7Off = new Image();
	nav7On.src = 'images/nav_contact_on.gif';
	nav7Off.src = 'images/nav_contact.gif';


}

else {

	
    nav1On = "";
	nav2On = "";
	nav3On = "";
	nav4On = "";
	nav5On = "";
	nav6On = "";
	nav7On = "";
	document.nav1 = "";
    document.nav2 = "";
	document.nav3 = "";
	document.nav4 = "";
	document.nav5 = "";
	document.nav6 = "";
	document.nav7 = "";	
}
function MM_swapImage(imgName) {
  
    imgOn=eval(imgName + "On.src");
    document [imgName].src = imgOn;
  
}
 
function MM_swapImgRestore(imgName) {
 
    imgOff = eval(imgName + "Off.src");
    document [imgName].src = imgOff;
 
}