/*! wow - v1.0.1 - 2014-09-03
* copyright (c) 2014 matthieu aussaguel; licensed mit
wow.js 依赖 animate.css，所以它支持 animate.css 多达 60 多种的动画效果
1、引入文件
<link rel="stylesheet" href="css/animate.min.css">
animate.min.css的几十种效果预览地址：http://www.dowebok.com/demo/2014/98/
2、html
<div class="wow slideinleft"></div>
<div class="wow slideinright"></div>
可以加入 data-wow-duration（动画持续时间）和 data-wow-delay（动画延迟时间）属性，如：
<div class="wow slideinleft" data-wow-duration="2s" data-wow-delay="5s"></div>
<div class="wow slideinright" data-wow-offset="10"  data-wow-iteration="10"></div>
3、javascript
new wow().init();
*/
(function(){var a,b,c,d,e,f=function(a,b){return function(){return a.apply(b,arguments)}},g=[].indexof||function(a){for(var b=0,c=this.length;c>b;b++)if(b in this&&this[b]===a)return b;return-1};b=function(){function a(){}return a.prototype.extend=function(a,b){var c,d;for(c in b)d=b[c],null==a[c]&&(a[c]=d);return a},a.prototype.ismobile=function(a){return/android|webos|iphone|ipad|ipod|blackberry|iemobile|opera mini/i.test(a)},a.prototype.addevent=function(a,b,c){return null!=a.addeventlistener?a.addeventlistener(b,c,!1):null!=a.attachevent?a.attachevent("on"+b,c):a[b]=c},a.prototype.removeevent=function(a,b,c){return null!=a.removeeventlistener?a.removeeventlistener(b,c,!1):null!=a.detachevent?a.detachevent("on"+b,c):delete a[b]},a.prototype.innerheight=function(){return"innerheight"in window?window.innerheight:document.documentelement.clientheight},a}(),c=this.weakmap||this.mozweakmap||(c=function(){function a(){this.keys=[],this.values=[]}return a.prototype.get=function(a){var b,c,d,e,f;for(f=this.keys,b=d=0,e=f.length;e>d;b=++d)if(c=f[b],c===a)return this.values[b]},a.prototype.set=function(a,b){var c,d,e,f,g;for(g=this.keys,c=e=0,f=g.length;f>e;c=++e)if(d=g[c],d===a)return void(this.values[c]=b);return this.keys.push(a),this.values.push(b)},a}()),a=this.mutationobserver||this.webkitmutationobserver||this.mozmutationobserver||(a=function(){function a(){"undefined"!=typeof console&&null!==console&&console.warn("mutationobserver is not supported by your browser."),"undefined"!=typeof console&&null!==console&&console.warn("wow.js cannot detect dom mutations, please call .sync() after loading new content.")}return a.notsupported=!0,a.prototype.observe=function(){},a}()),d=this.getcomputedstyle||function(a){return this.getpropertyvalue=function(b){var c;return"float"===b&&(b="stylefloat"),e.test(b)&&b.replace(e,function(a,b){return b.touppercase()}),(null!=(c=a.currentstyle)?c[b]:void 0)||null},this},e=/(\-([a-z]){1})/g,this.wow=function(){function e(a){null==a&&(a={}),this.scrollcallback=f(this.scrollcallback,this),this.scrollhandler=f(this.scrollhandler,this),this.start=f(this.start,this),this.scrolled=!0,this.config=this.util().extend(a,this.defaults),this.animationnamecache=new c}return e.prototype.defaults={boxclass:"wow",animateclass:"animated",offset:0,mobile:!0,live:!0},e.prototype.init=function(){var a;return this.element=window.document.documentelement,"interactive"===(a=document.readystate)||"complete"===a?this.start():this.util().addevent(document,"domcontentloaded",this.start),this.finished=[]},e.prototype.start=function(){var b,c,d,e;if(this.stopped=!1,this.boxes=function(){var a,c,d,e;for(d=this.element.queryselectorall("."+this.config.boxclass),e=[],a=0,c=d.length;c>a;a++)b=d[a],e.push(b);return e}.call(this),this.all=function(){var a,c,d,e;for(d=this.boxes,e=[],a=0,c=d.length;c>a;a++)b=d[a],e.push(b);return e}.call(this),this.boxes.length)if(this.disabled())this.resetstyle();else{for(e=this.boxes,c=0,d=e.length;d>c;c++)b=e[c],this.applystyle(b,!0);this.util().addevent(window,"scroll",this.scrollhandler),this.util().addevent(window,"resize",this.scrollhandler),this.interval=setinterval(this.scrollcallback,50)}return this.config.live?new a(function(a){return function(b){var c,d,e,f,g;for(g=[],e=0,f=b.length;f>e;e++)d=b[e],g.push(function(){var a,b,e,f;for(e=d.addednodes||[],f=[],a=0,b=e.length;b>a;a++)c=e[a],f.push(this.dosync(c));return f}.call(a));return g}}(this)).observe(document.body,{childlist:!0,subtree:!0}):void 0},e.prototype.stop=function(){return this.stopped=!0,this.util().removeevent(window,"scroll",this.scrollhandler),this.util().removeevent(window,"resize",this.scrollhandler),null!=this.interval?clearinterval(this.interval):void 0},e.prototype.sync=function(){return a.notsupported?this.dosync(this.element):void 0},e.prototype.dosync=function(a){var b,c,d,e,f;if(!this.stopped){if(null==a&&(a=this.element),1!==a.nodetype)return;for(a=a.parentnode||a,e=a.queryselectorall("."+this.config.boxclass),f=[],c=0,d=e.length;d>c;c++)b=e[c],g.call(this.all,b)<0?(this.applystyle(b,!0),this.boxes.push(b),this.all.push(b),f.push(this.scrolled=!0)):f.push(void 0);return f}},e.prototype.show=function(a){return this.applystyle(a),a.classname=""+a.classname+" "+this.config.animateclass},e.prototype.applystyle=function(a,b){var c,d,e;return d=a.getattribute("data-wow-duration"),c=a.getattribute("data-wow-delay"),e=a.getattribute("data-wow-iteration"),this.animate(function(f){return function(){return f.customstyle(a,b,d,c,e)}}(this))},e.prototype.animate=function(){return"requestanimationframe"in window?function(a){return window.requestanimationframe(a)}:function(a){return a()}}(),e.prototype.resetstyle=function(){var a,b,c,d,e;for(d=this.boxes,e=[],b=0,c=d.length;c>b;b++)a=d[b],e.push(a.setattribute("style","visibility: visible;"));return e},e.prototype.customstyle=function(a,b,c,d,e){return b&&this.cacheanimationname(a),a.style.visibility=b?"hidden":"visible",c&&this.vendorset(a.style,{animationduration:c}),d&&this.vendorset(a.style,{animationdelay:d}),e&&this.vendorset(a.style,{animationiterationcount:e}),this.vendorset(a.style,{animationname:b?"none":this.cachedanimationname(a)}),a},e.prototype.vendors=["moz","webkit"],e.prototype.vendorset=function(a,b){var c,d,e,f;f=[];for(c in b)d=b[c],a[""+c]=d,f.push(function(){var b,f,g,h;for(g=this.vendors,h=[],b=0,f=g.length;f>b;b++)e=g[b],h.push(a[""+e+c.charat(0).touppercase()+c.substr(1)]=d);return h}.call(this));return f},e.prototype.vendorcss=function(a,b){var c,e,f,g,h,i;for(e=d(a),c=e.getpropertycssvalue(b),i=this.vendors,g=0,h=i.length;h>g;g++)f=i[g],c=c||e.getpropertycssvalue("-"+f+"-"+b);return c},e.prototype.animationname=function(a){var b;try{b=this.vendorcss(a,"animation-name").csstext}catch(c){b=d(a).getpropertyvalue("animation-name")}return"none"===b?"":b},e.prototype.cacheanimationname=function(a){return this.animationnamecache.set(a,this.animationname(a))},e.prototype.cachedanimationname=function(a){return this.animationnamecache.get(a)},e.prototype.scrollhandler=function(){return this.scrolled=!0},e.prototype.scrollcallback=function(){var a;return!this.scrolled||(this.scrolled=!1,this.boxes=function(){var b,c,d,e;for(d=this.boxes,e=[],b=0,c=d.length;c>b;b++)a=d[b],a&&(this.isvisible(a)?this.show(a):e.push(a));return e}.call(this),this.boxes.length||this.config.live)?void 0:this.stop()},e.prototype.offsettop=function(a){for(var b;void 0===a.offsettop;)a=a.parentnode;for(b=a.offsettop;a=a.offsetparent;)b+=a.offsettop;return b},e.prototype.isvisible=function(a){var b,c,d,e,f;return c=a.getattribute("data-wow-offset")||this.config.offset,f=window.pageyoffset,e=f+math.min(this.element.clientheight,this.util().innerheight())-c,d=this.offsettop(a),b=d+a.clientheight,e>=d&&b>=f},e.prototype.util=function(){return null!=this._util?this._util:this._util=new b},e.prototype.disabled=function(){return!this.config.mobile&&this.util().ismobile(navigator.useragent)},e}()}).call(this);