/* - moo.fx.js - */
// http://tlt.its.psu.edu/portal_javascripts/moo.fx.js?original=1
var fx=new Object();fx.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}}
fx.Layout=Class.create();fx.Layout.prototype=Object.extend(new fx.Base(),{initialize: function(el,options){this.el=$(el);this.el.style.overflow="hidden";this.el.iniWidth=this.el.offsetWidth;this.el.iniHeight=this.el.offsetHeight;this.setOptions(options)}});fx.Height=Class.create();Object.extend(Object.extend(fx.Height.prototype,fx.Layout.prototype),{increase: function(){this.el.style.height=this.now+"px"},toggle: function(){if(this.el.offsetHeight>0) this.custom(this.el.offsetHeight,0);else this.custom(0,this.el.scrollHeight)}});fx.Width=Class.create();Object.extend(Object.extend(fx.Width.prototype,fx.Layout.prototype),{increase: function(){this.el.style.width=this.now+"px"},toggle: function(){if(this.el.offsetWidth>0) this.custom(this.el.offsetWidth,0);else this.custom(0,this.el.iniWidth)}});fx.Opacity=Class.create();fx.Opacity.prototype=Object.extend(new fx.Base(),{initialize: function(el,options){this.el=$(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)}});fx.sinoidal=function(pos){return((-Math.cos(pos*Math.PI)/2)+0.5)}
fx.linear=function(pos){return pos}
fx.cubic=function(pos){return Math.pow(pos,3)}
fx.circ=function(pos){return Math.sqrt(pos)}