function spoiler(div, toggler) {
	if (div.style.display != "") {
		div.style.display = ""; 
		toggler.innerHTML = '<a href="#" onClick="return false;">hide</a>'; 
	} 
	else { 
		div.style.display = "none"; 
		toggler.innerHTML = '<a href="#" onClick="return false;">show</a>'; 
	}
}