/*! modernizr 3.1.0 (custom build) | mit *
 * http://modernizr.com/download/?-backgroundsize-bgsizecover-borderradius-boxshadow-cssanimations-csstransforms-csstransforms3d-csstransitions-touchevents !*/
!function(e,n,t){function s(e){var n=c.classname,t=modernizr._config.classprefix||"";if(s&&(n=n.baseval),modernizr._config.enablejsclass){var s=new regexp("(^|\\s)"+t+"no-js(\\s|$)");n=n.replace(s,"$1"+t+"js$2")}modernizr._config.enableclasses&&(n+=" "+t+e.join(" "+t),s?c.classname.baseval=n:c.classname=n)}function o(e,n){return typeof e===n}function r(){var e,n,t,s,r,i,a;for(var f in x){if(e=[],n=x[f],n.name&&(e.push(n.name.tolowercase()),n.options&&n.options.aliases&&n.options.aliases.length))for(t=0;t<n.options.aliases.length;t++)e.push(n.options.aliases[t].tolowercase());for(s=o(n.fn,"function")?n.fn():n.fn,r=0;r<e.length;r++)i=e[r],a=i.split("."),1===a.length?modernizr[a[0]]=s:(!modernizr[a[0]]||modernizr[a[0]]instanceof boolean||(modernizr[a[0]]=new boolean(modernizr[a[0]])),modernizr[a[0]][a[1]]=s),y.push((s?"":"no-")+a.join("-"))}}function i(){return"function"!=typeof n.createelement?n.createelement(arguments[0]):s?n.createelementns.call(n,"http://www.w3.org/2000/svg",arguments[0]):n.createelement.apply(n,arguments)}function a(){var e=n.body;return e||(e=i(s?"svg":"body"),e.fake=!0),e}function f(e,t,s,o){var r,f,u,l,d="modernizr",p=i("div"),c=a();if(parseint(s,10))for(;s--;)u=i("div"),u.id=o?o[s]:d+(s+1),p.appendchild(u);return r=i("style"),r.type="text/css",r.id="s"+d,(c.fake?c:p).appendchild(r),c.appendchild(p),r.stylesheet?r.stylesheet.csstext=e:r.appendchild(n.createtextnode(e)),p.id=d,c.fake&&(c.style.background="",c.style.overflow="hidden",l=c.style.overflow,c.style.overflow="hidden",c.appendchild(c)),f=t(p,e),c.fake?(c.parentnode.removechild(c),c.style.overflow=l,c.offsetheight):p.parentnode.removechild(p),!!f}function u(e,n){return!!~(""+e).indexof(n)}function l(e){return e.replace(/([a-z])-([a-z])/g,function(e,n,t){return n+t.touppercase()}).replace(/^-/,"")}function d(e,n){return function(){return e.apply(n,arguments)}}function p(e,n,t){var s;for(var r in e)if(e[r]in n)return t===!1?e[r]:(s=n[e[r]],o(s,"function")?d(s,t||n):s);return!1}function c(e){return e.replace(/([a-z])/g,function(e,n){return"-"+n.tolowercase()}).replace(/^ms-/,"-ms-")}function m(n,s){var o=n.length;if("css"in e&&"supports"in e.css){for(;o--;)if(e.css.supports(c(n[o]),s))return!0;return!1}if("csssupportsrule"in e){for(var r=[];o--;)r.push("("+c(n[o])+":"+s+")");return r=r.join(" or "),f("@supports ("+r+") { #modernizr { position: absolute; } }",function(e){return"absolute"==getcomputedstyle(e,null).position})}return t}function v(e,n,s,r){function a(){d&&(delete j.style,delete j.modelem)}if(r=o(r,"undefined")?!1:r,!o(s,"undefined")){var f=m(e,s);if(!o(f,"undefined"))return f}for(var d,p,c,v,h,g=["modernizr","tspan"];!j.style;)d=!0,j.modelem=i(g.shift()),j.style=j.modelem.style;for(c=e.length,p=0;c>p;p++)if(v=e[p],h=j.style[v],u(v,"-")&&(v=l(v)),j.style[v]!==t){if(r||o(s,"undefined"))return a(),"pfx"==n?v:!0;try{j.style[v]=s}catch(y){}if(j.style[v]!=h)return a(),"pfx"==n?v:!0}return a(),!1}function h(e,n,t,s,r){var i=e.charat(0).touppercase()+e.slice(1),a=(e+" "+p.join(i+" ")+i).split(" ");return o(n,"string")||o(n,"undefined")?v(a,n,s,r):(a=(e+" "+e.join(i+" ")+i).split(" "),p(a,n,t))}function g(e,n,s){return h(e,t,t,n,s)}var y=[],x=[],b={_version:"3.1.0",_config:{classprefix:"",enableclasses:!0,enablejsclass:!0,useprefixes:!0},_q:[],on:function(e,n){var t=this;settimeout(function(){n(t[e])},0)},addtest:function(e,n,t){x.push({name:e,fn:n,options:t})},addasynctest:function(e){x.push({name:null,fn:e})}},modernizr=function(){};modernizr.prototype=b,modernizr=new modernizr;var c=n.documentelement,s="svg"===c.nodename.tolowercase(),w=b._config.useprefixes?" -webkit- -moz- -o- -ms- ".split(" "):[];b._prefixes=w;var _="css"in e&&"supports"in e.css,t="supportscss"in e;modernizr.addtest("supports",_||t);var z=b.teststyles=f;modernizr.addtest("touchevents",function(){var t;if("ontouchstart"in e||e.documenttouch&&n instanceof documenttouch)t=!0;else{var s=["@media (",w.join("touch-enabled),("),"heartz",")","{#modernizr{top:9px;position:absolute}}"].join("");z(s,function(e){t=9===e.offsettop})}return t});var k="moz o ms webkit",p=b._config.useprefixes?k.split(" "):[];b._cssomprefixes=p;var e=b._config.useprefixes?k.tolowercase().split(" "):[];b._domprefixes=e;var n={elem:i("modernizr")};modernizr._q.push(function(){delete n.elem});var j={style:n.elem.style};modernizr._q.unshift(function(){delete j.style}),b.testallprops=h,b.testallprops=g,modernizr.addtest("cssanimations",g("animationname","a",!0)),modernizr.addtest("backgroundsize",g("backgroundsize","100%",!0)),modernizr.addtest("csstransitions",g("transition","all",!0)),modernizr.addtest("csstransforms3d",function(){var e=!!g("perspective","1px",!0),n=modernizr._config.useprefixes;if(e&&(!n||"webkitperspective"in c.style)){var t;modernizr.supports?t="@supports (perspective: 1px)":(t="@media (transform-3d)",n&&(t+=",(-webkit-transform-3d)")),t+="{#modernizr{left:9px;position:absolute;height:5px;margin:0;padding:0;border:0}}",z(t,function(n){e=9===n.offsetleft&&5===n.offsetheight})}return e}),modernizr.addtest("bgsizecover",g("backgroundsize","cover")),modernizr.addtest("borderradius",g("borderradius","0px",!0)),modernizr.addtest("boxshadow",g("boxshadow","1px 1px",!0)),modernizr.addtest("csstransforms",function(){return-1===navigator.useragent.indexof("android 2.")&&g("transform","scale(1)",!0)}),r(),s(y),delete b.addtest,delete b.addasynctest;for(var a=0;a<modernizr._q.length;a++)modernizr._q[a]();e.modernizr=modernizr}(window,document);
/*
 * jquery easing v1.3 - http://gsgd.co.uk/sandbox/jquery/easing/
 *
*/
//smooth scroll chrome
// !function(a){a(document).ready(function(){function q(){if(document.url.indexof("google.com/reader/view")>-1&&(g=!0),i)for(var a=i.split(/[,\n] ?/),b=a.length;b--;)if(document.url.indexof(a[b])>-1){d("mousewheel",v),g=!0;break}}function r(){if(document.body){var a=document.body,b=document.documentelement,c=window.innerheight,d=a.scrollheight;if(o=document.compatmode.indexof("css")>=0?b:a,n=a,q(),l=!0,top!=self)j=!0;else if(d>c&&(a.offsetheight<=c||b.offsetheight<=c)&&(o.style.height="auto",o.offsetheight<=c)){var e=document.createelement("div");e.style.clear="both",a.appendchild(e)}if(document.url.indexof("mail.google.com")>-1){var f=document.createelement("style");f.innerhtml=".iu { visibility: hidden }",(document.getelementsbytagname("head")[0]||b).appendchild(f)}m||(a.style.backgroundattachment="scroll"),g&&d("keydown",w)}}function u(c,e,f,g){if(g||(g=1e3),f(e,f),s.push({x:e,y:f,lastx:0>e?.99:-.99,lasty:0>f?.99:-.99,start:+new date}),!t){var h=function(){for(var i=+new date,j=0,k=0,l=0;l<s.length;l++){var m=s[l],n=i-m.start,o=n>=b,p=o?1:n/b;d&&(p=h(p));var q=m.x*p-m.lastx>>0,r=m.y*p-m.lasty>>0;j+=q,k+=r,m.lastx+=q,m.lasty+=r,o&&(s.splice(l,1),l--)}if(e){var u=c.scrollleft;c.scrollleft+=j,j&&c.scrollleft===u&&(e=0)}if(f){var v=c.scrolltop;c.scrolltop+=k,k&&c.scrolltop===v&&(f=0)}e||f||(s=[]),s.length?settimeout(h,g/a+1):t=!1};settimeout(h,0),t=!0}}function v(a){l||r();var b=a.target,d=b(b);if(!d||a.defaultprevented||e(n,"embed")||e(b,"embed")&&/\.pdf/i.test(b.src))return!0;var e=a.wheeldeltax||0,f=a.wheeldeltay||0;e||f||(f=a.wheeldelta||0),math.abs(e)>1.2&&(e*=c/120),math.abs(f)>1.2&&(f*=c/120),u(d,-e,-f),a.preventdefault()}function w(a){var b=a.target,c=a.ctrlkey||a.altkey||a.metakey;if(/input|textarea|embed/i.test(b.nodename)||b.iscontenteditable||a.defaultprevented||c)return!0;if(e(b,"button")&&a.keycode===p.spacebar)return!0;var d,e=0,f=0,g=b(n),i=g.clientheight;switch(g==document.body&&(i=window.innerheight),a.keycode){case p.up:f=-h;break;case p.down:f=h;break;case p.spacebar:d=a.shiftkey?1:-1,f=.9*-d*i;break;case p.pageup:f=.9*-i;break;case p.pagedown:f=.9*i;break;case p.home:f=-g.scrolltop;break;case p.end:var j=g.scrollheight-g.scrolltop-i;f=j>0?j+10:0;break;case p.left:e=-h;break;case p.right:e=h;break;default:return!0}u(g,e,f),a.preventdefault()}function x(a){n=a.target}function a(a,b){for(var c=a.length;c--;)y[z(a[c])]=b;return b}function b(a){var b=[],c=o.scrollheight;do{var d=y[z(a)];if(d)return a(b,d);if(b.push(a),c===a.scrollheight){if(!j||o.clientheight+10<c)return a(b,document.body)}else if(a.clientheight+10<a.scrollheight&&(overflow=getcomputedstyle(a,"").getpropertyvalue("overflow"),"scroll"===overflow||"auto"===overflow))return a(b,a)}while(a=a.parentnode)}function c(a,b,c){window.addeventlistener(a,b,c||!1)}function d(a,b,c){window.removeeventlistener(a,b,c||!1)}function e(a,b){return a.nodename.tolowercase()===b.tolowercase()}function f(a,b){a=a>0?1:-1,b=b>0?1:-1,(k.x!==a||k.y!==b)&&(k.x=a,k.y=b,s=[])}function g(a){var b,c,d;return a*=e,1>a?b=a-(1-math.exp(-a)):(c=math.exp(-1),a-=1,d=1-math.exp(-a),b=c+d*(1-c)),b*f}function h(a){return a>=1?1:0>=a?0:(1==f&&(f/=g(1)),g(a))}var n,o,a=150,b=600,c=150,d=!0,e=5,f=1,g=!1,h=50,i="",j=!1,k={x:0,y:0},l=!1,m=!0,p={left:37,up:38,right:39,down:40,spacebar:32,pageup:33,pagedown:34,end:35,home:36},s=[],t=!1,y={};setinterval(function(){y={}},1e4);var z=function(){var a=0;return function(b){return b.uniqueid||(b.uniqueid=a++)}}();/chrome/.test(navigator.useragent.tolowercase())&&(c("mousedown",x),c("mousewheel",v),c("keydown",w),c("load",r))})}(jquery);

/*********************************************************************************************/
// 渐入效果
/*********************************************************************************************/
(function(jquery){
    $.fn.scrollclass = function(config){
        var defaults = {};
        var config = jquery.extend(defaults, config);
        var target = this;

        function addaction(){
            var length = target.length;
            for(var i=0; i<length; i++){
                if(target.eq(i).hasclass('articleshow')) continue;
                
                var in_position = target.eq(i).offset().top + 100;
                var window_bottom_position = jquery(window).scrolltop() + jquery(window).height();
                if(in_position < window_bottom_position){
                    target.eq(i).addclass('articleshow');
                }
            }
        }
        addaction();

        jquery(window).on('scroll', function(){
            addaction();
        });
        return target;
    };
} )(jquery);
/*********************************************************************************************/

$(function(){
if(!placeholdersupport()){   // 判断浏览器是否支持 placeholder
    $('[placeholder]').focus(function() {
        var input = $(this);
        if (input.val() == input.attr('placeholder')) {
            input.val('');
            input.removeclass('placeholder');
        }
    }).blur(function() {
        var input = $(this);
        if (input.val() == '' || input.val() == input.attr('placeholder')) {
            input.addclass('placeholder');
            input.val(input.attr('placeholder'));
        }
    }).blur();
};
})
function placeholdersupport() {
    return 'placeholder' in document.createelement('input');
}