// JavaScript Document
function toggle_visibility(id) {
var e = document.getElementById(id);
if(e.style.display == 'none')
e.style.display = 'block';
else
e.style.display = 'none'; }

function showpart( id) {
el = document.getElementById(id);
var display = el.style.display ? '' : 'none';
el.style.display = display; }