abs_beg = new Image(); // Active images
abs_beg.src = "images/ads/abs_beg.png";
lindy_hop = new Image();
lindy_hop.src = "images/ads/lindy_hop.png";
swingeasy = new Image();
swingeasy.src = "images/ads/swingeasy.png";
pend_swing = new Image();
pend_swing.src = "images/ads/pend_swing.png";
priv_tuit = new Image();
priv_tuit.src = "images/ads/priv_tuit.png";
sat_dance = new Image();
sat_dance.src = "images/ads/sat_dance.png";
workshops = new Image();
workshops.src = "images/ads/workshops.png";
eot_ball = new Image();
eot_ball.src = "images/ads/eot_ball.png";

function rollover(img) {
obj = document.getElementById('themetxt');
switch (img) {
	case 'abs':
		document['theme'].src = eval("abs_beg.src");
		obj.innerHTML = 'absolute beginners';
		break;
	case 'lin':
		document['theme'].src = eval("lindy_hop.src");
		obj.innerHTML = 'lindy hop';
		break;
	case 'swi':
		document['theme'].src = eval("swingeasy.src");
		obj.innerHTML = 'swing easy';
		break;
	case 'pen':
		document['theme'].src = eval("pend_swing.src");
		obj.innerHTML = 'pendulum swing';
		break;
	case 'pri':
		document['theme'].src = eval("priv_tuit.src");
		obj.innerHTML = 'private tuition';
		break;
	case 'sat':
		document['theme'].src = eval("sat_dance.src");
		obj.innerHTML = 'saturday dances';
		break;
	case 'wor':
		document['theme'].src = eval("workshops.src");
		obj.innerHTML = 'work shops';
		break;
	case 'eot':
		obj.innerHTML = 'end of term ball';
		document['theme'].src = eval("eot_ball.src");
		break;
	case 'prb':
		obj.innerHTML = 'private bookings';
		document['theme'].src = eval("workshops.src");
		break;
}
}