(function(){var easing=0.25;var interval=20;var d=document;var targetX=0;var targetY=0;var targetHash='';var scrolling=false;var splitHref=location.href.split('#');var currentHref_WOHash=splitHref[0];var incomingHash=splitHref[1];var prevX=null;var prevY=null;addEvent(window,'load',init);function init(){setOnClickHandler();if(incomingHash){if(window.attachEvent&&!window.opera){setTimeout(function(){scrollTo(0,0);setScroll('#'+incomingHash);},50);}else{scrollTo(0,0);setScroll('#'+incomingHash);}}}
function addEvent(eventTarget,eventName,func){if(eventTarget.addEventListener){eventTarget.addEventListener(eventName,func,false);}else if(window.attachEvent){eventTarget.attachEvent('on'+eventName,function(){func.apply(eventTarget);});}}
function setOnClickHandler(){var links=d.links;for(var i=0;i<links.length;i++){var link=links[i];var splitLinkHref=link.href.split('#');if(currentHref_WOHash==splitLinkHref[0]&&d.getElementById(splitLinkHref[1])){addEvent(link,'click',startScroll);}}}
function startScroll(event){if(event){event.preventDefault();}else if(window.event){window.event.returnValue=false;}
setScroll(this.hash);}
function setScroll(hash){var targetEle=d.getElementById(hash.substr(1));if(!targetEle)return;var ele=targetEle
var x=0;var y=0;while(ele){x+=ele.offsetLeft;y+=ele.offsetTop;ele=ele.offsetParent;}
targetX=x;targetY=y;targetHash=hash;if(!scrolling){scrolling=true;scroll();}}
function scroll(){var currentX=d.documentElement.scrollLeft||d.body.scrollLeft;var currentY=d.documentElement.scrollTop||d.body.scrollTop;var vx=currentX;var vy=(targetY-currentY)*easing;var nextX=currentX;var nextY=currentY+vy;if((Math.abs(vx)>1&&Math.abs(vy)<1)||(prevX===currentX&&prevY===currentY)){scrolling=false;location.hash=targetHash;prevX=prevY=null;return;}else{scrollTo(parseInt(nextX),parseInt(nextY));prevX=currentX;prevY=currentY;var scope=this;setTimeout(function(){scroll.apply(scope)},interval);}}}());