// JavaScript Document

function OfOpen(ID) {
document.getElementById('content_' + ID).style.display = "block";
document.getElementById('head_' + ID).innerHTML="<a href=\"javascript:OfClose('" + ID + "');\">" + ID + "</a>";
}
function OfClose(ID) {
document.getElementById('content_' + ID).style.display = "none";
document.getElementById('head_' + ID).innerHTML="<a href=\"javascript:OfOpen('" + ID + "');\">" + ID + "</a>";
}