/* 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(getCookie('id_item_ativo')){
    // desativa o menu do cookie
	id = getCookie('id_item_ativo');
	if(document.getElementById(id)){
		//item = document.getElementById(id);
		//item.className = "";
	    //getNextSiblingByElement(item).style.display = "none";
	}
  }
  if(this == activeMenu){
    activeMenu = null;
  } else {  	
	    this.className = "active";        
	    getNextSiblingByElement(this).style.display = "block";
	    activeMenu = this;  
	    setCookie('id_item_ativo',this.id, '/', 60*60*24);
  }
  return false;
}

function initMenu(){
  var menus, menu, text, a, i,activeMenu;
  menus = getChildrenByElement(document.getElementById("menu_vertical"));
  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.id = i;
    a.href = "#";
    a.onclick = showMenu;
    //a.onmouseover = showMenu;
    a.onfocus = function(){this.blur()};
  }
  
  if(getCookie('id_item_ativo')){
  	
    // ativa o menu do cookie
	id = getCookie('id_item_ativo');	
	if(document.getElementById(id)){	
		//alert(id);	
		item = document.getElementById(id);		
		
		item.className = "active";		
	    getNextSiblingByElement(item).style.display = "block";
		activeMenu = item;	
    }
  }
}
function getCookie(name) {
    dc = document.cookie;
    if(dc.length > 0){
        prefix = name + '=';
        begin = dc.split(prefix);
        return unescape(begin[1]);
    } else return false;
}

function setCookie(n, v, p, t){
    now = new Date();
    now.setTime(Date.parse(now) + t);
    document.cookie =  n+'='+escape(v)+';PATH='+p+';EXPIRES='+now.toUTCString();
    if (!getCookie(n)) return false;
    else return true;
}
//setCookie('cookiename', 1, '/', 60*60*24);


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