var floatPanel = new McFloatPanel();
/* Float Panel v2016.4.3. Copyright www.menucool.com */
function McFloatPanel(){var m=[],e="className",f="length",h="display",w="transition",i="style",v="height",b="scrollTop",l="offsetHeight",c=document,a=document.documentElement,j=function(a,c,b){if(a.addEventListener)a.addEventListener(c,b,false);else a.attachEvent&&a.attachEvent("on"+c,b)},s=function(b,c){if(typeof getComputedStyle!="undefined")var a=getComputedStyle(b,null);else a=b.currentStyle;return a?a[c]:"fixed"},E=function(){var b=c.body;return Math.max(b.scrollHeight,b[l],a.clientHeight,a.scrollHeight,a[l])},H=function(a,c){var b=a[f];while(b--)if(a[b]===c)return true;return false},g=function(b,a){return H(b[e].split(" "),a)},q=function(a,b){if(!g(a,b))if(!a[e])a[e]=b;else a[e]+=" "+b},n=function(c,g){if(c[e]){for(var d="",b=c[e].split(" "),a=0,h=b[f];a<h;a++)if(b[a]!==g)d+=b[a]+" ";c[e]=d.replace(/^\s+|\s+$/g,"")}},k=function(){return window.pageYOffset||a[b]},F=function(a){return a.getBoundingClientRect().top},z=function(a){var b=k();if(b>a.oS&&!g(a,"fixed"))q(a,"fixed");else g(a,"fixed")&&b<a.oS&&n(a,"fixed")},t=function(){for(var a=0;a<m[f];a++)C(m[a])},C=function(a){if(a.oS){a.fpTimer&&clearTimeout(a.fpTimer);a.fpTimer=setTimeout(function(){if(a.alwaysFixed)z(a);else u(a)},50)}else u(a)},u=function(b){var m=F(b),d=b[l],f=b[i],c=b.pH[i],e=k();if(m<b.oT&&e>b.oS&&!g(b,"fixed")&&(window.innerHeight||a.clientHeight)>d){b.tP=e+m-b.oT;var o=E();if(d>o-b.tP-d)var j=d;else j=0;c[h]="block";c[w]="none";c[v]=d+1+"px";b.pH[l];c[w]="height .3s";c[v]=j+"px";q(b,"fixed");f.position="fixed";f.top=b.oT+"px";if(s(b,"position")!="fixed")c[h]="none"}else if(g(b,"fixed")&&(e<b.tP||e<b.oS)){n(b,"fixed");c[h]="none";f.position=f.top=""}},B=function(){var d=[],b,a;if(c.getElementsByClassName)d=c.getElementsByClassName("float-panel");else{var k=c.getElementsByTagName("*");b=k[f];while(b--)g(k[b],"float-panel")&&d.push(k[b])}b=d[f];for(var e=0;e<b;e++){a=m[e]=d[e];a.oT=parseInt(a.getAttribute("data-top")||0);a.oS=parseInt(a.getAttribute("data-scroll")||0);if(a.oS>20&&s(a,"position")=="fixed")a.alwaysFixed=1;a.pH=c.createElement("div");a.pH[i].width=a.offsetWidth+"px";a.pH[i][h]="none";a.parentNode.insertBefore(a.pH,a.nextSibling)}if(m[f]){setTimeout(t,160);j(window,"scroll",t)}G()};j(window,"load",B);var d,x=200,y=0,r,p,A=function(){return window.innerWidth||a.clientWidth||c.body.clientWidth};function D(){r=setInterval(function(){var d=c.body;if(d[b]<3)d[b]=0;else d[b]=d[b]/1.4;if(a[b]<3)a[b]=0;else a[b]=a[b]/1.4;if(!k()){clearInterval(r);r=null}},12)}function o(){clearTimeout(p);if(k()>x&&A()>y){p=setTimeout(function(){n(d,"mcOut")},60);d[i][h]="block"}else{q(d,"mcOut");p=setTimeout(function(){d[i][h]="none"},500)}}var G=function(){d=c.getElementById("backtop");if(d){var a=d.getAttribute("data-v-w");if(a){a=a.replace(/\s/g,"").split(",");x=parseInt(a[0]);if(a[f]>1)y=parseInt(a[1])}j(d,"click",D);j(window,"resize",o);j(window,"scroll",o);o()}}}