/* 
Simple JQuery menu.
HTML structure to use:

Notes: 

1: each menu MUST have an ID set. It doesn't matter what this ID is as long as it's there.
2: each menu MUST have a class 'menu' set. If the menu doesn't have this, the JS won't make it dynamic

Optional extra classnames:

noaccordion : no accordion functionality
collapsible : menu works like an accordion but can be fully collapsed
expandfirst : first menu item expanded at page load

<ul id="menu1" class="menu [optional class] [optional class]">
<li><a href="#">Sub menu heading</a>
<ul>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
...
...
</ul>
<li><a href="#">Sub menu heading</a>
<ul>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
...
...
</ul>
...
...
</ul>

Copyright 2008 by Marco van Hylckama Vlieg

web: http://www.i-marco.nl/weblog/
email: marco@i-marco.nl

Free for non-commercial use
*/

jQuery.fn.initMenu = function() {
return this.each(function(){
var theMenu = $(this).get(0);
$('.acitem', this).hide();
$('li.expand > .acitem', this).show();
$('li.expand > .acitem', this).prev().addClass('active');
$('li a', this).click(
function(e) {
e.stopImmediatePropagation();
var theElement = $(this).next();
var parent = this.parentNode.parentNode;
if($(parent).hasClass('noaccordion')) {
if(theElement[0] === undefined) {
window.location.href = this.href;
}
$(theElement).slideToggle('normal', function() {
if ($(this).is(':visible')) {
$(this).prev().addClass('active');
}
else {
$(this).prev().removeClass('active');
}
});
return false;
}
else {
if(theElement.hasClass('acitem') && theElement.is(':visible')) {
if($(parent).hasClass('collapsible')) {
$('.acitem:visible', parent).first().slideUp('normal',
function() {
$(this).prev().removeClass('active');
}
);
return false;
}
return false;
}
if(theElement.hasClass('acitem') && !theElement.is(':visible')) {
$('.acitem:visible', parent).first().slideUp('normal', function() {
$(this).prev().removeClass('active');
});
theElement.slideDown('normal', function() {
$(this).prev().addClass('active');
});
return false;
}
}
}
);
});
};
$(document).ready(function() {$('.menu').initMenu();});