// JavaScript Document/*

/* menuDropdown.js - implements an dropdown menu based on a HTML list

* Author: Dave Lindquist (dave@gazingus.org)

*/


var currentMenu = null;


if (!document.getElementById)

document.getElementById = function() { return null; }


function initializeMenu(menuId, actuatorId) {

var menu = document.getElementById(menuId);

var actuator = document.getElementById(actuatorId);


if (menu == null || actuator == null) return;


if (window.opera) return; // I'm too tired


actuator.onmouseover = function() {

if (currentMenu) {

currentMenu.style.visibility = "hidden";

this.showMenu();

}

}


actuator.onclick = function() {

if (currentMenu == null) {

this.showMenu();

}

else {

currentMenu.style.visibility = "hidden";

currentMenu = null;

}


return false;

}


actuator.showMenu = function() {

menu.style.left = this.offsetLeft + "px";

menu.style.top = this.offsetTop + this.offsetHeight + 2 + "px";

menu.style.visibility = "visible";

currentMenu = menu;

}

}