// JavaScript Document

//リンク元には→ a href="JavaScript:MyMenu('treeMenu1')"
//リンク先には→ id="treeMenu1" style="display: none;"


function MyMenu(tName){
tMenu=(document.all)?document.all(tName).style:document.getElementById(tName).style;
(tMenu.display=='none')?tMenu.display="block":tMenu.display="none";
}