/* This script and many more are available free online at
The JavaScript Source :: http://javascript.internet.com
Created by: Travis Beckham :: http://www.squidfingers.com | http://www.podlob.com
version date: 06/02/03 :: If want to use this code, feel free to do so,
but please leave this message intact. (Travis Beckham) */

// Node Functions

if (!window.Node) {
    var Node = { ELEMENT_NODE: 1, TEXT_NODE: 3 };
}

function checkNode(node, filter) {
    return (filter == null || node.nodeType == Node[filter] || node.nodeName.toUpperCase() == filter.toUpperCase());
}

function getChildren(node, filter) {
    var result = new Array();
    var children = node.childNodes;
    for (var i = 0; i < children.length; i++) {
        if (checkNode(children[i], filter)) result[result.length] = children[i];
    }
    return result;
}

function getChildrenByElement(node) {
    return getChildren(node, "ELEMENT_NODE");
}

function getFirstChild(node, filter) {
    var child;
    var children = node.childNodes;
    for (var i = 0; i < children.length; i++) {
        child = children[i];
        if (checkNode(child, filter)) return child;
    }
    return null;
}

function getFirstChildByText(node) {
    return getFirstChild(node, "TEXT_NODE");
}

function getNextSibling(node, filter) {
    for (var sibling = node.nextSibling; sibling != null; sibling = sibling.nextSibling) {
        if (checkNode(sibling, filter)) return sibling;
    }
    return null;
}
function getNextSiblingByElement(node) {
    return getNextSibling(node, "ELEMENT_NODE");
}

// Menu Functions & Properties

var activeMenu = null;

function showMenu() {
    if (activeMenu) {
        activeMenu.className = "";
        getNextSiblingByElement(activeMenu).style.display = "none";
    }
    if (this == activeMenu) {
        activeMenu = null;
    } else {
        this.className = "active";
        getNextSiblingByElement(this).style.display = "block";
        activeMenu = this;
    }
    return false;
}

function initMenu() {
    var menus, menu, text, a, i;
    menus = getChildrenByElement(document.getElementById("menu"));
    for (i = 0; i < menus.length; i++) {
        menu = menus[i];
        text = getFirstChildByText(menu);
        a = document.createElement("a");
        menu.replaceChild(a, text);
        a.appendChild(text);
        a.href = "#";
        a.onmouseover = showMenu;
        a.onfocus = function() { this.blur() };
    }
}

if (document.createElement) window.onload = initMenu;