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Select jquery elements except specific children

This is a simple question, but, I haven't found a clear answer in any of the question that I found. I modified a JSFiddle for my specific question.
I got this tiny code:
<ul>
<li id='one'>Element 1</li>
<li id='two'>Element 2</li>
<li id='three'>Element 3</li>
<li id='four'>Element 4</li>
<li id='five'>Element 5</li>
</ul>
and this script should return the ul element excepting the first li:
$(function(){
$("ul").not($('#one'))
});
Instead, it removes every li. What have I done wrong?
EDIT: In others words, I would like a selector which selects this, without removing the actual element (= inside a variable)
<ul>
<li id='two'>Element 2</li>
<li id='three'>Element 3</li>
<li id='four'>Element 4</li>
<li id='five'>Element 5</li>
</ul>
FIDDLE: http://jsfiddle.net/LVUMs/13/

Use
$("ul li").not($('#one')).remove();
DEMO
OR
$("ul li:not(#one)").remove();
DEMO 2
EDIT
You need
var ulexceptOneLi = $("ul li:not(#one)");
or
var ulexceptOneLi = $("ul li").not($('#one'));

Try this code:
Fiddle
$(function(){
$("ul>li").not($('#one')).empty();
});

Assuming you meant to keep the ul in play:
$("ul li#one").remove();
Here's a fiddle...
If you're wanting to return a ul element with the removed element inside, try this:
function do_crazy_thing(){
var removed = $("ul li#one").remove();
return $('<ul></ul>').append(removed);
}
do_crazy_thing();
Here's another fiddle...
Here's how you would then append your new ul element to the body...

Demo Fiddle
According to your question, your expected output is :
<ul>
<li id='two'>Element 2</li>
<li id='three'>Element 3</li>
<li id='four'>Element 4</li>
<li id='five'>Element 5</li>
</ul>
Check the demo.
Edit :
$(function(){
var removed = $("ul li:not(#one)");
});
OR
var op = $("ul :not(#one)");

Please try below JS code
$(function(){
var test= $("ul li").remove("#one");
});

How do i .removeClass('active') for just one of my <li> elements with jQuery?

I am having some issues figure out how i can just remove a class ="active" from a just one of my lists.
I have a navigation bar:
<div class="container">
<ul class="nav">
<li class="active">Home</li>
<li>About</li>
<li>Contact</li>
</ul>
</div>
I also have a menu within Home:
<div class="container_2">
<ul>
<li class="left-main-list active">Subject 1</li>
<ul class="list-in-list">
<li>Sub subject 1</li>
<li>Sub subject 2</li>
</ul>
<li class="left-main-list>Subject 2</li>
<li class="left-main-list>Subject 3</li>
</ul>
</div>
While i browse my menu on the home page, i want to change the the active list items class to active when clicked, so i now have this jQuery code:
$(document).ready(function() {
$('li').click(function() {
$('li').removeClass('active');
$(this).addClass('active');
});
});
This works for my menu, the class change to the current one, but it also delete my navigation bars class, which i don't want. :)
I have tried something like:
$(document).ready(function() {
$('.left-main-list').click(function() {
$('.left-main-list li').removeClass('active');
$(this).addClass('active');
});
});
I've tried '.left-main-list li' & 'li.left-main-list' without any success.
Greatful for answer to this question, and i hope my question (this time) is more accurate than my previous ones. :)
/Bill
ps: Can a sub subject AND a main subject be active at the same time, and that sub subject's class of active, be removed if you for example click another sub subject, but the main item still have it's class of active?

While i browse my menu on the home page, i want to change the the
active list items class to active when clicked
You could just target the lis within the relevant div, similar to this:
$(document).ready(function() {
var $listItems = $('div.container_2 li');
$listItems.click(function() {
$listItems.removeClass('active');
$(this).addClass('active');
});
});
DEMO - target lis within .container_2 only
Can a sub subject AND a main subject be active at the same time, and
that sub subject's class of active, be removed if you for example
click another sub subject, but the main item still have it's class of
active?
Still targeting the container you could use jQuery's parent(), similar to this:
$(document).ready(function () {
$('div.container_2 li').click(function () {
var $this = $(this);
var $children = $this.parent().find('li');
$children.removeClass('active');
$this.addClass('active');
});
});
DEMO - Using parent() to allow active menu and sub-menu but not when main menu changes
I looked at the possibility of making this more dynamic to add activation of items going up the chain when switching between sub menus located within different main menu elements.
Fixing the HTML of the nested uls whereby your nested uls are inside lis instead of just inside the upper ul you can do a fully dynamic implementation.
Assume your HTML like this:
<div class="container">
<ul class="nav">
<li class="active">Home</li>
<li>About</li>
<li>Contact</li>
</ul>
</div>
<div class="container_2">
<ul>
<li class="left-main-list active">Subject 1
</li>
<li>
<ul class="list-in-list">
<li>Sub subject 1
</li>
<li>Sub subject 2
</li>
<li>
<ul class="list-in-list">
<li>Sub subject 1
</li>
<li>Sub subject 2
</li>
</ul>
</li>
</ul>
</li>
<li class="left-main-list">Subject 2
</li>
<li class="left-main-list">Subject 3
</li>
</ul>
</div>
Now, using the following script, you can also make parents of any sub menu items active when changing from a sub menu to another which is within another main menu item, similar to this:
$(document).ready(function () {
$('div.container_2 li>a').click(function () {
var $this = $(this);
var $relatedElements = $this.parents('ul').find('li');
if($this.hasClass('active')){
return;
}
$relatedElements.removeClass('active');
$this.parent('li').addClass('active');
var $parents = $this.parents('li');
$parents.each(function(){
$(this).not($this.parent()).prev().addClass('active');
});
});
});
DEMO - Chain-like activation
I think this should have all possible examples to get you started from here.
Hope this helps.

Try this:
$("li").click(function() {
$(this.parentNode).children("li").removeClass("active");
$(this).addClass("active");
});
This will affect only the siblings of the element you click on.

$('.left-main-list').click(function() {
$('.left-main-list').removeClass('active');
$(this).addClass('active');
});

I think what you're looking for is this:
$(document).ready(function() {
$('li').click(function() {
$('li.left-main-list').removeClass('active');
$(this).addClass('active');
});
});

How about
$('li').on ('click', function (){
$(this).addClass ('active').siblings ('li').removeClass ('active');
})

Custom show/hide links

I plan to apply a custom show/hide effect on link, such that when a user hovers on a link, a different link appears in its place. I'm not so good in javascript and here is what I was trying:
<div id="nav">
<li id="a1">hover link 1</li>
<li id="a2">show link 1</li>
<li id="b1">hover link 2</li>
<li id="b2">show link 2</li>
<li id="c1">hover link 3</li>
<li id="c2">show link 3</li>
</div>
The javascript:
$("#nav a.li").hover(function () {
(this.id.charAt(0)+"1").hide();
});
Here is the fiddle

You missed $ and need to add # befor id your also need to change selector as you do not have anchor with class li
Change
(this.id.charAt(0)+"1").hide();
to
$('#' +this.id.charAt(0)+"1").hide();
Your code would be
Live Demo
$("#nav a li").hover(function () {
$('#'+ this.id.charAt(0)+"1").hide();
});
Edit If you want to remove the item being hovered then use $(this)
Live Demo
$("#nav a li").hover(function () {
$(this).hide();
});

Show/hide content for menu sublink and close the content when click next new link

I'm looking for a solution, it must work in IE also, that I can have the content hidden and then when you click one of the menu items it shows the content. However, the content doesn't hide until a user clicks on the next link...

Please check this link
http://jsfiddle.net/varada/YLX9x/
you can use jquery hide() and show() functions for that.
Let the id of div that is to be hidden be hidden_div, let menu item be menu_item, next button be next,
Import the jquery.js
and write the ready function as below..
$(document).ready(function() {
$('#menu_item').click(function() {
$('#hidden_div').show();
});
$('#next').click(function() {
$('#hidden_div').hide();
});
});
or if you mean the content be visible till he click the next link on the menu item, add a class name say, menu_class to the menu items and write the code
$('.menu_class').click(function() {
$('#hidden_div').hide();
});
instead of $('#next').click(function()
if you have a menu like
<ul>
<li class='menu_class'>item 1</li>
<li id='menu_item' >item 2</li>
<li class='menu_class'>item 3</li>
</ul>
and the div
<div id='hidde_div' style='display:none'>
content
</div>
then if you click item 2 the div will get displayed. and if you click item 1 or item 3 it will get hidden. make sure you are using the code $('.menu_class').click(function() {

html:
<li class="main">Web
<ul>
<li>Designing</li>
<li>Development</li>
</ul>
</li>
<li class="main">IT
<ul>
<li>Sales & Service</li>
<li>CCTV</li>
<li>DVR</li>
</ul>
</li>
<li class="main">ITES
<ul>
<li>BPO</li>
<li>Online Portal</li>
<li>Online Marketing</li>
</ul>
</li>​
js:
$(document).ready(function(){
$('li ul:not(:first)').hide();
$('ul li').click(function(){
$(this).closest('.main').next().find('ul').show();
$(this).closest('ul').hide();
});
});​
http://jsfiddle.net/7QheB/

jQuery show submenu if parent have been clicked

Could some one please help with code.
I want to show the submenu only when submenu parent is clicked.
HTML
<ul>
<li>Item</li>
<li>Item
<ul class="sub-menu">
<li>Submenu</li>
<li>Submenu</li>
</ul>
</li>
<li>Item</li>
<li>Item
<ul class="sub-menu">
<li>Submenu</li>
<li>Submenu</li>
</ul>
</li>
<li>Item</li>
</ul>
So if you click on the parent submenu will show.
Here is fiddle link - http://jsfiddle.net/KhNCV/1/

$('.sub-menu').hide();
$("li:has(ul)").click(function(){
$("ul",this).slideDown();
});
http://jsfiddle.net/3nigma/KhNCV/2/
OR
$('.sub-menu').hide();
$("li:has(ul)").click(function(){
$("ul",this).toggle('slow');
});
http://jsfiddle.net/3nigma/KhNCV/4/

Here's your example working. It's unclear why you need the a tags, as you could use cursor: pointer in the CSS to make the li appear clickable. I'll assume you want to do some spiffy hovering on them in IE that's CSS only? If not, you could simplify by removing them.
Instead of doing hide() on .submenu, you should use CSS (parsed with DOM instead of onReady/load).
.sub-menu { display: none; }
And then here's you code to toggle the menus:
$('ul li a').click(function() {
$(this).parent().find('ul.sub-menu').toggle();
return false;
});

$('.sub-menu').hide();
$("a").click(function(){
$(this).parent().children("ul").toggle();
})
check out this link
http://jsfiddle.net/KhNCV/6/

$('li a').click(
function() {
$(this).next().slideToggle();
})

Try this
$(function(){
//Hide all the sub menus
$('.sub-menu').hide();
$("li:has(ul)").click(function(){
//Find the child ul and slideToggle
$(this).children("ul").slideToggle();
});
});