/* 
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() {
	
	function showSubmenu(liElement, suppressAnimation) {
		var elem = liElement.srcElement || liElement;
		var elemWrapped = $(elem);
		var checkElement = elemWrapped.next();
		var parent = elem.parentNode.parentNode.id;

		if($('#' + parent).hasClass('noaccordion')) {
			if((String(parent).length > 0) && (String(elem.className).length > 0)) {
				if(suppressAnimation) {
					elemWrapped.next().toggle();
				} else {
					elemWrapped.next().slideToggle('normal');
				}
			}				
		}
		if((checkElement.is('ul')) && (checkElement.is(':visible'))) {
			if($('#' + parent).hasClass('collapsible')) {
				$('#' + parent + ' ul:visible').slideUp(suppressAnimation ? 0 : 'normal');
			}
			return false;
		}
		if((checkElement.is('ul')) && (!checkElement.is(':visible'))) {
			if(suppressAnimation) {
				$('#' + parent + ' ul:visible').hide();
				checkElement.show();
			} else {
				$('#' + parent + ' ul:visible').slideUp('normal');
				checkElement.slideDown('normal');
			}
			return false;
		}
	
	}


	$('ul.submenu ul').hide();
	$('ul.submenu li a').click(showSubmenu);

	//Show the submenu for the current page parent
	var currentParent = $('ul.submenu li.current_page_parent a');
	if(currentParent.size() > 0) {
		showSubmenu(currentParent.get(0), true);
	}
}
$(document).ready(function() {initMenus();});