/* 
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
*/

function initMenus() {
    $('dl.accordion dd:not(".expandme")').hide();
    $('.accordion').each( function(){
        var $this = $(this);
        var cookie = $.cookie(this.id);

        if((cookie === null || String(cookie).length < 1) && $this.hasClass('expandfirst') ){
            $('dd:first', $this).show();
        }
        else {
            $('#' + this.id + ' .' + cookie).next().show();
        }
    });
    $('.accordion dt').css('cursor','pointer').bind('click',
        function() {
            var $thisDT = $(this);
            var $thisDD = $thisDT.next();
            //var parent = this.parentNode.parentNode.id;
            var $parent = $thisDT.parent();
            var parent = $parent.attr('id');
            $('.accordion dt').not(this).removeClass('isOpen');
            $thisDT.toggleClass('isOpen');
    
            if($parent.hasClass('noaccordion')) {
                if((String(parent).length > 0) && (String(this.id).length > 0)) {
                    if($thisDD.is(':visible')) {
                        $.cookie(parent, null);
                    }
                    else {
                        $.cookie(parent, this.id);
                    }
                    $thisDD.slideToggle('normal');
                }
            }
            if ($thisDD.is(':visible')){
                if($parent.hasClass('collapsible')) {
                    $('dd:visible', $parent).slideUp('normal');
                }
             
            }else
            {
                $('dd:visible', $parent).slideUp('normal');
                if((String(parent).length > 0) && (String(this.id).length > 0)) {
                    $.cookie(parent, this.id);
                }
                $thisDD.slideDown('normal');
             
            }
            return false;
        }
        );
}
$(document).ready(function() {
    initMenus();
});