function showTopBox(e) 
{
	var box = document.getElementById('top-gallery-1-box');
	//alert(box);
	if (box) {
		box.style.display = 'block';
	}
	stopProp(e, window.event);
}
function hideTopBox(e) 
{
	var box = document.getElementById('top-gallery-1-box');
	if (box) {
		box.style.display = 'none';
	}
	stopProp(e, window.event);
}

/* zamezuje probulani udalosti */
function stopProp(e, eIE) {
	if(e) {//W3C
		e.stopPropagation();
	} else if(eIE) {//IE
		eIE.cancelBubble = true;
	}
}