function visibility(visible,obj) {
	if (document.all) {
		if (visible=='change') visible=window.document.all(obj).style.display=='none';
		if (visible) window.document.all(obj).style.display='';
		else window.document.all(obj).style.display='none';
	}
	else if (document.getElementById) {
		if (visible=='change') visible=document.getElementById(obj).style.display=='none';
			if (visible) document.getElementById(obj).style.display='';
			else document.getElementById(obj).style.display='none';
		}
	return true;
}

function visible(obj) {
	if (document.all) return window.document.all(obj).style.display!='none';
	if (document.getElementById) return document.getElementById(obj).style.display!='none';
	return false;
}