function changeMainImg(ref, id, title) {
	var i = $('imageMain');
	
	i.src = 'images/properties/' + ref + '_IMG_' + id + '.jpg';
	i.alt = title;
	i.title= title;
}

function changeImg(ref, id, title) {
	var t = $('mainImageTitle');
	var i = $('mainImageImage');
	
	i.src = 'images/properties/' + ref + '_IMG_' + id + '.jpg';
	i.alt = title;
	i.title= title;
	t.innerHTML = title;
}