function init(){if(!document.body)return;var e=document.body,t=document.documentelement,n=window.innerheight,r=e.scrollheight;root=document.compatmode.indexof("css")>=0?t:e;activeelement=e;initdone=!0;if(top!=self)frame=!0;else if(r>n&&(e.offsetheight<=n||t.offsetheight<=n)){var i=!1,s=function(){if(!i&&t.scrollheight!=document.height){i=!0;settimeout(function(){t.style.height=document.height+"px";i=!1},500)}};t.style.height="";settimeout(s,10);addevent("domnodeinserted",s);addevent("domnoderemoved",s);if(root.offsetheight<=n){var o=document.createelement("div");o.style.clear="both";e.appendchild(o)}}if(document.url.indexof("mail.google.com")>-1){var u=document.createelement("style");u.innerhtml=".iu { visibility: hidden }";(document.getelementsbytagname("head")[0]||t).appendchild(u)}if(!fixedback&&!disabled){e.style.backgroundattachment="scroll";t.style.backgroundattachment="scroll"}}function scrollarray(e,t,n,r){r||(r=1e3);directioncheck(t,n);if(acceleration){var i=+(new date),s=i-lastscroll;if(s<acceldelta){var o=(1+30/s)/2;if(o>1){o=math.min(o,accelmax);t*=o;n*=o}}lastscroll=+(new date)}que.push({x:t,y:n,lastx:t<0?.99:-0.99,lasty:n<0?.99:-0.99,start:+(new date)});if(pending)return;var u=e===document.body,a=function(){var i=+(new date),s=0,o=0;for(var f=0;f<que.length;f++){var l=que[f],c=i-l.start,h=c>=animtime,p=h?1:c/animtime;pulsealgorithm&&(p=pulse(p));var d=l.x*p-l.lastx>>0,v=l.y*p-l.lasty>>0;s+=d;o+=v;l.lastx+=d;l.lasty+=v;if(h){que.splice(f,1);f--}}if(u)window.scrollby(s,o);else{s&&(e.scrollleft+=s);o&&(e.scrolltop+=o)}!t&&!n&&(que=[]);que.length?requestframe(a,e,r/framerate+1):pending=!1};requestframe(a,e,0);pending=!0}function wheel(e){initdone||init();var t=e.target,n=overflowingancestor(t);if(!n||e.defaultprevented||isnodename(activeelement,"embed")||isnodename(t,"embed")&&/\.pdf/i.test(t.src))return!0;var r=e.wheeldeltax||0,i=e.wheeldeltay||0;!r&&!i&&(i=e.wheeldelta||0);math.abs(r)>1.2&&(r*=stepsize/120);math.abs(i)>1.2&&(i*=stepsize/120);scrollarray(n,-r,-i);e.preventdefault()}function keydown(e){var t=e.target,n=e.ctrlkey||e.altkey||e.metakey||e.shiftkey&&e.keycode!==key.spacebar;if(/input|textarea|select|embed/i.test(t.nodename)||t.iscontenteditable||e.defaultprevented||n)return!0;if(isnodename(t,"button")&&e.keycode===key.spacebar)return!0;var r,i=0,s=0,o=overflowingancestor(activeelement),u=o.clientheight;o==document.body&&(u=window.innerheight);switch(e.keycode){case key.up:s=-arrowscroll;break;case key.down:s=arrowscroll;break;case key.spacebar:r=e.shiftkey?1:-1;s=-r*u*.9;break;case key.pageup:s=-u*.9;break;case key.pagedown:s=u*.9;break;case key.home:s=-o.scrolltop;break;case key.end:var a=o.scrollheight-o.scrolltop-u;s=a>0?a+10:0;break;case key.left:i=-arrowscroll;break;case key.right:i=arrowscroll;break;default:return!0}scrollarray(o,i,s);e.preventdefault()}function mousedown(e){activeelement=e.target}function setcache(e,t){for(var n=e.length;n--;)cache[uniqueid(e[n])]=t;return t}function overflowingancestor(e){var t=[],n=root.scrollheight;do{var r=cache[uniqueid(e)];if(r)return setcache(t,r);t.push(e);if(n===e.scrollheight){if(!frame||root.clientheight+10<n)return setcache(t,document.body)}else if(e.clientheight+10<e.scrollheight){overflow=getcomputedstyle(e,"").getpropertyvalue("overflow-y");if(overflow==="scroll"||overflow==="auto")return setcache(t,e)}}while(e=e.parentnode)}function addevent(e,t,n){window.addeventlistener(e,t,n||!1)}function removeevent(e,t,n){window.removeeventlistener(e,t,n||!1)}function isnodename(e,t){return(e.nodename||"").tolowercase()===t.tolowercase()}function directioncheck(e,t){e=e>0?1:-1;t=t>0?1:-1;if(direction.x!==e||direction.y!==t){direction.x=e;direction.y=t;que=[];lastscroll=0}}function pulse_(e){var t,n,r;e*=pulsescale;if(e<1)t=e-(1-math.exp(-e));else{n=math.exp(-1);e-=1;r=1-math.exp(-e);t=n+r*(1-n)}return t*pulsenormalize}function pulse(e){if(e>=1)return 1;if(e<=0)return 0;pulsenormalize==1&&(pulsenormalize/=pulse_(1));return pulse_(e)}var framerate=150,animtime=1e3,stepsize=80,pulsealgorithm=!0,pulsescale=8,pulsenormalize=1,acceleration=!0,acceldelta=10,accelmax=1,keyboardsupport=!0,disablekeyboard=!1,arrowscroll=50,exclude="",disabled=!1,frame=!1,direction={x:0,y:0},initdone=!1,fixedback=!0,root=document.documentelement,activeelement,key={left:37,up:38,right:39,down:40,spacebar:32,pageup:33,pagedown:34,end:35,home:36},que=[],pending=!1,lastscroll=+(new date),cache={};setinterval(function(){cache={}},1e4);var uniqueid=function(){var e=0;return function(t){return t.uniqueid||(t.uniqueid=e++)}}(),requestframe=function(){return window.requestanimationframe||window.webkitrequestanimationframe||function(e,t,n){window.settimeout(e,n||1e3/60)}}();addevent("mousedown",mousedown);addevent("mousewheel",wheel);addevent("load",init);