isOPERA = (navigator.userAgent.indexOf('Opera') >= 0)? true : false;
isIE    = (document.all && !isOPERA)? true : false;
isDOM   = (document.getElementById && !isIE && !isOPERA)? true : false;

function hide (id) {
	if (isDOM) {
		document.getElementById(id).style.display = "none";
	}
	else if (isIE) {
		document.all[id].style.display = "none";
	}
}
if (isDOM || isIE) {
	document.writeln('<style type="text/css">');
	document.writeln('.SubItemRow \{ display: none; \}');
	document.writeln('</style>');
}

function show (id, displayValue) {
	if (isDOM) {
		document.getElementById(id).style.display = (displayValue)? displayValue : "block";
	}
	else if (isIE) {
		document.all[id].style.display = "block";
	}
}

function show_hide(id, displayValue) {
	srcPM = document.plusminus.src + '';
	if(srcPM.indexOf('plus') > 0) {
		show(id, displayValue);
		document.plusminus.src = '/imgs/minus.gif';
		if (isDOM) {
			document.getElementById('sst').style.visibility = "hidden";
		}
		else if (isIE) {
			document.all['sst'].style.visibility = "hidden";
		}
	}
	else {
		hide(id);
		document.plusminus.src = '/imgs/plus.gif';
		if (isDOM) {
			document.getElementById('sst').style.visibility = "visible";
		}
		else if (isIE) {
			document.all['sst'].style.visibility = "visible";
		}
	}
}