//サブメニュー
// thanks for (o)!
// Ogawa::Memoranda, http://as-is.net/blog/

function toggleWithImg(o,tClassName,initState) {
var t = o.parentNode.nextSibling;
while (t.className != tClassName) {
t = t.nextSibling;
}
var s = t.style.display || initState;
if (s != "block") {
t.style.display = "block";
o.alt = "Collapse";
o.src = "../../img/bullet_minus.gif";
} else {
t.style.display = "none";
o.alt = "Expand";
o.src = "../../img/bullet_plus.gif";
}
}