//easing/lavalamp

(function($) {
	$.fn.lavaLamp = function(o) {
		o = $.extend({ fx: "linear", speed: 500, click: function() { } }, o || {}); 
		
		return this.each(function() { 
			var me = $(this), 
			noop = function() { }, 
			$back = $('<li class="back"><div class="left"></div></li>').appendTo(me), 
			$li = $("> li", this), curr = $("li.current", this)[0] || $($li[0]).addClass("current")[0]; 
			
			$li.not(".back").hover(function() { move(this); }, noop); 
			$(this).hover(noop, 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" }); curr = el; }; 
			function move(el) { $back.stop().animate({ width: el.offsetWidth, left: el.offsetLeft}, o.speed, o.fx); }; }
		); }; 
})(jQuery);


jQuery.extend(jQuery.easing, { 
	easeInQuad: function(x, t, b, c, d) { return c * (t /= d) * t + b; }, 
	easeOutQuad: function(x, t, b, c, d) { return -c * (t /= d) * (t - 2) + b; }, 
	easeInOutQuad: function(x, t, b, c, d) { if ((t /= d / 2) < 1) return c / 2 * t * t + b; return -c / 2 * ((--t) * (t - 2) - 1) + b; }, 
	easeInCubic: function(x, t, b, c, d) { return c * (t /= d) * t * t + b; }, 
	easeOutCubic: function(x, t, b, c, d) { return c * ((t = t / d - 1) * t * t + 1) + b; }, 
	easeInOutCubic: function(x, t, b, c, d) { if ((t /= d / 2) < 1) return c / 2 * t * t * t + b; return c / 2 * ((t -= 2) * t * t + 2) + b; },
	easeInQuart: function(x, t, b, c, d) { return c * (t /= d) * t * t * t + b; }, 
	easeOutQuart: function(x, t, b, c, d) { return -c * ((t = t / d - 1) * t * t * t - 1) + b; }, 
	easeInOutQuart: function(x, t, b, c, d) { if ((t /= d / 2) < 1) return c / 2 * t * t * t * t + b; return -c / 2 * ((t -= 2) * t * t * t - 2) + b; },
	easeInQuint: function(x, t, b, c, d) { return c * (t /= d) * t * t * t * t + b; }, 
	easeOutQuint: function(x, t, b, c, d) { return c * ((t = t / d - 1) * t * t * t * t + 1) + b; },
	easeInOutQuint: function(x, t, b, c, d) { if ((t /= d / 2) < 1) return c / 2 * t * t * t * t * t + b; return c / 2 * ((t -= 2) * t * t * t * t + 2) + b; }, 
	easeInSine: function(x, t, b, c, d) { return -c * Math.cos(t / d * (Math.PI / 2)) + c + b; }, 
	easeOutSine: function(x, t, b, c, d) { return c * Math.sin(t / d * (Math.PI / 2)) + b; }, 
	easeInOutSine: function(x, t, b, c, d) { return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b; }, 
	easeInExpo: function(x, t, b, c, d) { return (t == 0) ? b : c * Math.pow(2, 10 * (t / d - 1)) + b; }, 
	easeOutExpo: function(x, t, b, c, d) { return (t == d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b; },
	easeInOutExpo: function(x, t, b, c, d) { if (t == 0) return b; if (t == d) return b + c; if ((t /= d / 2) < 1) return c / 2 * Math.pow(2, 10 * (t - 1)) + b; return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b; }, 
	easeInCirc: function(x, t, b, c, d) { return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b; }, 
	easeOutCirc: function(x, t, b, c, d) { return c * Math.sqrt(1 - (t = t / d - 1) * t) + b; }, 
	easeInOutCirc: function(x, t, b, c, d) { if ((t /= d / 2) < 1) return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b; return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b; }, 
	easeInElastic: function(x, t, b, c, d) { var s = 1.70158; var p = 0; var a = c; if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * .3; if (a < Math.abs(c)) { a = c; var s = p / 4; } else var s = p / (2 * Math.PI) * Math.asin(c / a); return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b; }, 
	easeOutElastic: function(x, t, b, c, d) { var s = 1.70158; var p = 0; var a = c; if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * .3; if (a < Math.abs(c)) { a = c; var s = p / 4; } else var s = p / (2 * Math.PI) * Math.asin(c / a); return a * Math.pow(2, -10 * t) * Math.sin((t * d - s) * (2 * Math.PI) / p) + c + b; }, 
	easeInOutElastic: function(x, t, b, c, d) { var s = 1.70158; var p = 0; var a = c; if (t == 0) return b; if ((t /= d / 2) == 2) return b + c; if (!p) p = d * (.3 * 1.5); if (a < Math.abs(c)) { a = c; var s = p / 4; } else var s = p / (2 * Math.PI) * Math.asin(c / a); if (t < 1) return -.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b; return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p) * .5 + c + b; }, 
	easeInBack: function(x, t, b, c, d, s) { if (s == undefined) s = 1.70158; return c * (t /= d) * t * ((s + 1) * t - s) + b; }, 
	easeOutBack: function(x, t, b, c, d, s) { if (s == undefined) s = 1.70158; return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b; }, 
	easeInOutBack: function(x, t, b, c, d, s) { if (s == undefined) s = 1.70158; if ((t /= d / 2) < 1) return c / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b; return c / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b; }, 
	easeInBounce: function(x, t, b, c, d) { return c - jQuery.easing.easeOutBounce(x, d - t, 0, c, d) + b; }, 
	easeOutBounce: function(x, t, b, c, d) { if ((t /= d) < (1 / 2.75)) { return c * (7.5625 * t * t) + b; } else if (t < (2 / 2.75)) { return c * (7.5625 * (t -= (1.5 / 2.75)) * t + .75) + b; } else if (t < (2.5 / 2.75)) { return c * (7.5625 * (t -= (2.25 / 2.75)) * t + .9375) + b; } else { return c * (7.5625 * (t -= (2.625 / 2.75)) * t + .984375) + b; } }, 
	easeInOutBounce: function(x, t, b, c, d) { if (t < d / 2) return jQuery.easing.easeInBounce(x, t * 2, 0, c, d) * .5 + b; return jQuery.easing.easeOutBounce(x, t * 2 - d, 0, c, d) * .5 + c * .5 + b; } 
});