if (document.images) {

	nav1on=new Image();
	nav1on.src="images/about_on.gif";
	nav1off=new Image();
	nav1off.src="images/about.gif";
	nav2on=new Image();
	nav2on.src="images/festival_on.gif";
	nav2off=new Image();
	nav2off.src="images/festival.gif";
	nav3on=new Image();
	nav3on.src="images/get_on.gif";
	nav3off=new Image();
	nav3off.src="images/get.gif";	
	nav4on=new Image();
	nav4on.src="images/news_on.gif";
	nav4off=new Image();
	nav4off.src="images/news.gif";
	nav5on=new Image();
	nav5on.src="images/press_on.gif";
	nav5off=new Image();
	nav5off.src="images/press.gif";
	nav6on=new Image();
	nav6on.src="images/contact_on.gif";
	nav6off=new Image();
	nav6off.src="images/contact.gif";
	nav7on=new Image();
	nav7on.src="images/home_on.gif";
	nav7off=new Image();
	nav7off.src="images/home.gif";
	nav8on=new Image();
	nav8on.src="images/gallery_on.gif";
	nav8off=new Image();
	nav8off.src="images/gallery.gif";
	nav9on=new Image();
	nav9on.src="images/message_on.gif";
	nav9off=new Image();
	nav9off.src="images/message.gif";
	
}


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

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