function show(object) {
	if (document.all("spn_" + object).style.display == "") {
		document.all("spn_" + object).style.display = "none";
		document.all("img_" + object).src = "img/close.jpg";
	}
	else {
		document.all("spn_" + object).style.display = "";
		document.all("img_" + object).src = "img/open.jpg";
	}
}

function underline(object, state) {
	document.all(object).style.textDecoration = state;
}

function detail(object) {
	if (document.all("spn_" + object).style.display == "") 
		document.all("spn_" + object).style.display = "none";
	else
		document.all("spn_" + object).style.display = "";
}