var rollovers = new Array('products', 'europe', 'news', 'links', 'contact');
var navimages = new Array();
for(var i in rollovers)
{
	navimages[rollovers[i]] = new Object();
	navimages[rollovers[i]].off = new Image();
	navimages[rollovers[i]].off.src = 'images/nav/nav_'+rollovers[i]+'_off.gif';
	navimages[rollovers[i]].on = new Image();
	navimages[rollovers[i]].on.src = 'images/nav/nav_'+rollovers[i]+'_on.gif';
	
}


function onRollOver(id){
	
	var a = document.getElementById(id);
	a.src = navimages[id].on.src;
	
}

function onRollOut(id){
	
	var a = document.getElementById(id);
	a.src = navimages[id].off.src;
	
}