Menu em árvore

[gmiotto]

Opa! Sou nova na área de javascript, e estou tentando desenvolver um site para faculdade...

Eu gostaria de saber como fazer para deixar o menu compactado, contraído, e que ele só abrisse se o usuário clicasse?

Além disso, no IE o menu apresenta um pequeno erro. Quando clica para contrair, ele dá erro na imagem.

Link do menu:

C:\Documents and Settings\Cliente\Meus documentos\demar\menu.html

Código java script:

var remember = false; //Remember menu states, and restore them on next visit.

var contractall_default= true; //Should all submenus be contracted by default? (true or false)

var menu, titles, submenus, arrows, bypixels;

var heights = new Array();

var n = navigator.userAgent;

if(/Opera/.test(n)) bypixels = 2;

else if(/Firefox/.test(n)) bypixels = 3;

else if(/MSIE/.test(n)) bypixels = 2;

/////DD added expandall() and contractall() functions/////

function slash_expandall(){

if (typeof menu!="undefined"){

for(i=0; i<Math.max(titles.length, submenus.length); i++){

titles.className="title";

arrows.src = "menus1/fecha-preto.gif";

submenus.style.display="";

submenus.style.height = heights+"px";

}

}

}

function slash_contractall(){

if (typeof menu!="undefined"){

for(i=0; i<Math.max(titles.length, submenus.length); i++){

titles.className="titlehidden";

arrows.src = "menus1/fecha-preto.gif";

submenus.style.display="none";

submenus.style.height = 0;

}

}

}

/////End DD added functions///////////////////////////////

function init(){

menu = getElementsByClassName("sdmenu", "div", document)[0];

titles = getElementsByClassName("title", "span", menu);

submenus = getElementsByClassName("submenu", "div", menu);

arrows = getElementsByClassName("arrow", "img", menu);

for(i=0; i<Math.max(titles.length, submenus.length); i++) {

titles.onclick = gomenu;

arrows.onclick = gomenu;

heights = submenus.offsetHeight;

submenus.style.height = submenus.offsetHeight+"px";

}

if(remember)

restore()

else if (contractall_default) //DD added code

slash_contractall() //DD added code

}

function restore() {

if(getcookie("menu") != null) {

var hidden = getcookie("menu").split(",");

for(var i in hidden) {

titles[hidden].className = "titlehidden";

submenus[hidden].style.height = "0px";

submenus[hidden].style.display = "none";

arrows[hidden].src = "menus1/fecha-preto.gif";

}

}

}

function gomenu(e) {

if (!e)

var e = window.event;

var ce = (e.target) ? e.target : e.srcElement;

var sm;

for(var i in titles) {

if(titles == ce || arrows == ce)

sm = i;

}

if(parseInt(submenus[sm].style.height) > parseInt(heights[sm])-2) {

hidemenu(sm);

} else if(parseInt(submenus[sm].style.height) < 2) {

titles[sm].className = "title";

showmenu(sm);

}

}

function hidemenu(sm) {

var nr = submenus[sm].getElementsByTagName("a").length*bypixels;

submenus[sm].style.height = (parseInt(submenus[sm].style.height)-nr)+"px";

var to = setTimeout("hidemenu("+sm+")", 30);

if(parseInt(submenus[sm].style.height) <= nr) {

clearTimeout(to);

submenus[sm].style.display = "none";

submenus[sm].style.height = "0px";

arrows[sm].src = "menus1/fecha-preto.gif";

titles[sm].className = "titlehidden";

}

}

function showmenu(sm) {

var nr = submenus[sm].getElementsByTagName("a").length*bypixels;

submenus[sm].style.display = "";

submenus[sm].style.height = (parseInt(submenus[sm].style.height)+nr)+"px";

var to = setTimeout("showmenu("+sm+")", 30);

if(parseInt(submenus[sm].style.height) > (parseInt(heights[sm])-nr)) {

clearTimeout(to);

submenus[sm].style.height = heights[sm]+"px";

arrows[sm].src = "menus1/fecha-preto.gif";

}

}

function store() {

var hidden = new Array();

for(var i in titles) {

if(titles.className == "titlehidden")

hidden.push(i);

}

putcookie("menu", hidden.join(","), 30);

}

function getElementsByClassName(strClassName, strTagName, oElm){

var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName);

var arrReturnElements = new Array();

strClassName = strClassName.replace(/\-/g, "\\-");

var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");

var oElement;

for(var i=0; i<arrElements.length; i++){

oElement = arrElements;

if(oRegExp.test(oElement.className)){

arrReturnElements.push(oElement);

}

}

return (arrReturnElements)

}

function putcookie(c_name,value,expiredays) {

var exdate=new Date();

exdate.setDate(exdate.getDate()+expiredays);

document.cookie = c_name + "=" + escape(value) + ((expiredays==null) ? "" : ";expires="+exdate);

}

function getcookie(c_name) {

if(document.cookie.length > 0) {

var c_start = adocument.cookie.indexOf(c_name + "=");

if(c_start != -1) {

c_start = c_start + c_name.length + 1;

var c_end = document.cookie.indexOf(";",c_start);

if(c_end == -1)

c_end = document.cookie.length;

return unescape(document.cookie.substring(c_start, c_end));

}

}

return null;

}

window.onload = init;

if(remember) window.onunload = store;

Se alguém puder ajudar, agradeço muito!!!!!!

[fiote]

Amigo, a gente não tem acesso ao seu C: :P