var aboutoff = new Image();
aboutoff.src="images/about.gif";
var abouton = new Image();
abouton.src="images/abouton.gif";

var formatoff = new Image();
formatoff.src="images/course_formats.gif";
var formaton = new Image();
formaton.src="images/course_formatson.gif";

var currentoff = new Image();
currentoff.src="images/current_courses.gif";
var currenton = new Image();
currenton.src="images/current_courseson.gif";

var publicationsoff = new Image();
publicationsoff.src="images/publications.gif";
var publicationson = new Image();
publicationson.src="images/publicationson.gif";

var bookingoff = new Image();
bookingoff.src="images/booking_form.gif";
var bookingon = new Image();
bookingon.src="images/booking_formon.gif";

var findoff = new Image();
findoff.src="images/family_right_image2.gif";
var findon = new Image();
findon.src="images/family_right_image.gif";

var calloutoff = new Image();
calloutoff.src = "images/callout.gif";
var callouton = new Image();
callouton.src = "images/callout-b.gif";

var contactoff = new Image();
contactoff.src = "images/contact.gif";
var contacton = new Image();
contacton.src = "images/contacton.gif";

var learnoff = new Image();
learnoff.src="images/learn.gif";
var learnon = new Image();
learnon.src="images/learnon.gif";

var nahtoff = new Image();
nahtoff.src="images/naht.gif";
var nahton = new Image();
nahton.src="images/nahton.gif";

function rollover(imagename, objectsrc)
{
	if (document.images)
	{
		document.images[imagename].src=eval(objectsrc + '.src');
	}
}