var il = new Array();

if (document.images) 
{ 
	il['about']=newImageSrc("images/ro_about.gif");
	il['newsletter']=newImageSrc("images/ro_newsletter.gif");
	il['education']=newImageSrc("images/ro_education.gif");
	il['international']=newImageSrc("images/ro_international.gif");
	il['register']=newImageSrc("images/ro_register.gif");
	il['bookings']=newImageSrc("images/ro_bookings.gif");
	il['findus']=newImageSrc("images/ro_findus.gif");
	il['links']=newImageSrc("images/ro_links.gif");
	il['home']=newImageSrc("images/ro_home.gif");
	il['spacer']=newImageSrc("images/spacer.gif");
} 

function newImageSrc(src) {
	var i=new Image;
	i.src=src;
	return i;
}

function ic (div, img, ref) {
	var i;

	if (!document.images)
		return;

	if (document.layers)
		i = document.layers[div].document.images;
	else
		i = document.all[div].document.images;

	i[img].src = il[ref].src;
}