function pageFlip() {
	var nr = 0;
	var list = new Array();
	var img, l, i;
	var obj = document.getElementById('contentBox').getElementsByTagName('a');
	for (i=0; i<obj.length; i++) {
		if (obj[i].id && obj[i].id.indexOf('zoom') == 0) {
			nr++;
			list[list.length] = 'sajto-' + nr + '-rOn.jpg';
			img = obj[i].getElementsByTagName('img');
			for (l=0; l<img.length; l++) {
				img[l].nr = nr;
				addEvent(img[l], 'mouseover', flipOn);
				addEvent(img[l], 'mouseout', flipOff);
			}
		}
	}
	var path = document.getElementById('page1').src.split('sajto-');
	_preloader(list, path[0]);
}

function _preloader(list, path) {
	var preloadedPictures   = new Array();
    for (var i=0; i<list.length; i++) {
		preloadedPictures[i]     = new Image();
		preloadedPictures[i].src = path + list[i];
	}
	return true;
}

function flipOn(ev) {
	ev || (ev = window.event);
	var obj;
  	obj = getObjectOfEvent(ev);
  	if (!obj) {return true;}

	var path = obj.src.split('sajto-');
	var img  = document.getElementById('page' + obj.nr);
	img.src  = path[0] + 'sajto-' + obj.nr + '-rOn.jpg';

	killEvent(ev);
	return false;
	
}
function flipOff(ev) {
	ev || (ev = window.event);
	var obj;
  	obj = getObjectOfEvent(ev);
  	if (!obj) {return true;}

	var path = obj.src.split('sajto-');
	var img  = document.getElementById('page' + obj.nr);
	img.src  = path[0] + 'sajto-' + obj.nr + '-r.jpg';

	killEvent(ev);
	return false;
	
}