/**
 * LavaLamp - A menu plugin for jQuery with cool hover effects.
 * @requires jQuery v1.2.x
 *
 * http://nixbox.com/lavalamp.php
 *
 * Copyright (c) 2008 Jolyon Terwilliger (nixbox.com)
 * Original code Copyright (c) 2007, 2008
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * credits to Guillermo Rauch and Ganeshji Marwaha (gmarwaha.com) for previous editions
 *
 * Version: 1.0 - adapted for jQuery 1.2.x series
 * Version: 1.1 - added linum parameter
 * Version: 1.2 - modified to support vertical resizing of elements
 * Version: 1.3 - enhanced automatic <li> item hi-lighting - will now default to 
 * location.pathname + location.search + location.hash if linum not defined.
 * - always returns 'true' by default, for standard link follow through. 
 *
 * Creates a menu with an unordered list of menu-items. You can either use the CSS 
 * that comes with the plugin, or write your own styles 
 *
 * The HTML markup used to build the menu can be as simple as...
 *
 * <ul class="lavaLamp">
 * <li><a href="#">Phone Home</a></li>
 * <li><a href="#">Make Contact</a></li>
 * <li><a href="#">Board Ship</a></li>
 * <li><a href="#">Fly to Venus</a></li>
 * </ul>
 *
 * Once you have included the style sheet that comes with the plugin, you will have to include 
 * a reference to the jQuery library, easing plugin (optional) and the LavaLamp(this) plugin.
 *
 * Use the following snippet to initialize the menu using jQuery easing library::
 * Easing Library 1.3 available here: http://plugins.jquery.com/project/Easing
 * 
 * $(function() { $(".lavaLamp").lavaLamp({ fx: "easeOutBack", speed: 700}) });
 *
 * @param Object - You can specify all the options shown below as object variables:
 *
 * @option fx - default is "linear"
 * @example
 * $(".lavaLamp").lavaLamp({ fx: "easeOutElastic" });
 * @desc Creates a menu with "Elastic" easing effect. You need to include the easing plugin for this to work.
 *
 * @option speed - default is 500 ms
 * @example
 * $(".lavaLamp").lavaLamp({ speed: 500 });
 * @desc Creates a menu with an animation speed of 500 ms.
 *
 * @option click - no defaults
 * @example
 * $(".lavaLamp").lavaLamp({ click: function(event, menuItem) { return false; } });
 * @desc You can supply a callback to be executed when the menu item is clicked. 
 * The event object and the menu-item that was clicked will be passed in as arguments.
 * 
 * @option linum - default is 'no'
 * @example
 * $(".lavaLamp").lavaLamp({ linum: 2 });
 * @desc linum specifies the li element to default to, beginning with 0 for the first li element 
 * within the parent UL or OL used to initialize lavaLamp. This can be used to set default
 * lavaLamp hilight on page reloads.
 */
 
(function($) {
$.fn.lavaLamp = function(o) {
 o = $.extend({ fx: 'linear', speed: 500, click: function(){return true}, linum: 'no' }, o || {});
 return this.each(function() {
 var path = location.pathname + location.search + location.hash;
 var $current = new Object;
 var $li = $('li', this);
 
 // check for complete path match, if so flag element into $current
 if ( o.linum == 'no' )
 $current = $('li a[href$="' + path + '"]', this).parent('li');
 
 // double check, this may be just an anchor match
 if ($current.length == 0 && o.linum == 'no')
 $current = $('li a[href$="' + location.hash + '"]', this).parent('li');
 // no default current element matches worked, or the user specified an index via linum
 if ($current.length == 0 || o.linum != 'no') {
 if (o.linum == 'no') o.linum = 0;
 $current = $($li[o.linum]);
 }
 var $back = $('<li class="back"><div class="left"></div><div class="bottom"></div><div class="corner"></div></li>').appendTo(this);
 var curr = $('li.current', this)[0] || $($current).addClass('current')[0];
 $li.not('.back').hover(function() {
 move(this);
 }, function(){});
 $(this).hover(function(){}, function() {
 move(curr);
 });
 $li.click(function(e) {
 setCurr(this);
 return o.click.apply(this, [e, this]);
 });
 setCurr(curr);
 function setCurr(el) {
 $back.css({ 'left': el.offsetLeft+'px', 
 'width': el.offsetWidth+'px', 
 'height': el.offsetHeight+'px', 
 'top': el.offsetTop+'px' });
 curr = el;
 };
 function move(el) { 
 $back.stop()
 .animate({
 width: el.offsetWidth,
 left: el.offsetLeft,
 height: el.offsetHeight,
 top: el.offsetTop
 }, o.speed, o.fx);
 };
 });
};
})(jQuery);

$(function() { $(".lavaLamp").lavaLamp({ fx: "easeOutBack", speed: 700}) });