/*moo.fx, simple effects library built with prototype.js (http://prototype.conio.net).by Valerio Proietti (http://mad4milk.net) MIT-style LICENSE.for more info (http://moofx.mad4milk.net).Friday, February 24, 2006v 1.2.2*/var fx = new Object();//basefx.Base = function(){};fx.Base.prototype = {	setOptions: function(options) {	this.options = {		duration: 500,		onComplete: '',		transition: fx.sinoidal	}	Object.extend(this.options, options || {});	},	go: function() {		this.startTime = (new Date).getTime();		this.timer = setInterval (this.step.bind(this), 13);	},	step: function() {		var time  = (new Date).getTime();		if (time >= this.options.duration+this.startTime) {			this.now = this.to;			clearInterval (this.timer);			this.timer = null;			if (this.options.onComplete) setTimeout(this.options.onComplete.bind(this), 10);		}		else {			var Tpos = (time - this.startTime) / (this.options.duration);			this.now = this.options.transition(Tpos) * (this.to-this.from) + this.from;		}		this.increase();	},	custom: function(from, to) {		if (this.timer != null) return;		this.from = from;		this.to = to;		this.go();	},	hide: function() {		this.now = 0;		this.increase();	},	clearTimer: function() {		clearInterval(this.timer);		this.timer = null;	}}//stretchersfx.Layout = Class.create();fx.Layout.prototype = Object.extend(new fx.Base(), {	initialize: function(el, options) {		this.el = $(el);		this.el.style.overflow = "hidden";		this.el.iniWidth = this.el.offsetWidth;		this.el.iniHeight = this.el.offsetHeight;		this.setOptions(options);	}});fx.Height = Class.create();Object.extend(Object.extend(fx.Height.prototype, fx.Layout.prototype), {		increase: function() {		this.el.style.height = this.now + "px";	},	toggle: function() {		if (this.el.offsetHeight > 0) this.custom(this.el.offsetHeight, 0);		else this.custom(0, this.el.scrollHeight);	}});fx.Width = Class.create();Object.extend(Object.extend(fx.Width.prototype, fx.Layout.prototype), {		increase: function() {		this.el.style.width = this.now + "px";	},	toggle: function(){		if (this.el.offsetWidth > 0) this.custom(this.el.offsetWidth, 0);		else this.custom(0, this.el.iniWidth);	}});//faderfx.Opacity = Class.create();fx.Opacity.prototype = Object.extend(new fx.Base(), {	initialize: function(el, options) {		this.el = $(el);		this.now = 1;		this.increase();		this.setOptions(options);	},	increase: function() {		if (this.now == 1 && (/Firefox/.test(navigator.userAgent))) this.now = 0.9999;		this.setOpacity(this.now);	},		setOpacity: function(opacity) {		if (opacity == 0) this.el.style.visibility = "hidden";		else this.el.style.visibility = "visible";		if (window.ActiveXObject) this.el.style.filter = "alpha(opacity=" + opacity*100 + ")";		this.el.style.opacity = opacity;	},	toggle: function() {		if (this.now > 0) this.custom(1, 0);		else this.custom(0, 1);	}});//transitionsfx.sinoidal = function(pos){	return ((-Math.cos(pos*Math.PI)/2) + 0.5);	//this transition is from script.aculo.us}fx.linear = function(pos){	return pos;}fx.cubic = function(pos){	return Math.pow(pos, 3);}fx.circ = function(pos){	return Math.sqrt(pos);}