function ss_fixAllLinks() {
 var allLinks = document.getElementsByTagName('a');
 for (var i=0;i<allLinks.length;i++) {
   var lnk = allLinks[i];
   if ((lnk.href && lnk.href.indexOf('#') != -1) &&  
       ( (lnk.pathname == location.pathname) ||
   ('/'+lnk.pathname == location.pathname) ) &&  
       (lnk.search == location.search)) {
     ss_addEvent(lnk,'click',smoothScroll);
   }
 }
}

function smoothScroll(e) {
 if (window.event) {
   target = window.event.srcElement;
 } else if (e) {
   target = e.target;
 } else return;
 
 if (target.nodeType == 3) {
   target = target.parentNode;
 }
 
 if (target.nodeName.toLowerCase() != 'a') return;
 
 anchor = target.hash.substr(1);
 // Now loop all A tags until we find one with that name
 var allLinks = document.getElementsByTagName('a');
 var destinationLink = null;
 for (var i=0;i<allLinks.length;i++) {
   var lnk = allLinks[i];
   if (lnk.name && (lnk.name == anchor)) {
     destinationLink = lnk;
     break;
   }
 }
 
 if (!destinationLink) return true;
 
 var destx = destinationLink.offsetLeft;  
 var desty = destinationLink.offsetTop;
 var thisNode = destinationLink;
 while (thisNode.offsetParent &&  
       (thisNode.offsetParent != document.body)) {
   thisNode = thisNode.offsetParent;
   destx += thisNode.offsetLeft;
   desty += thisNode.offsetTop;
 }
 
 clearInterval(ss_INTERVAL);
 
 cypos = ss_getCurrentYPos();
 
 ss_stepsize = parseInt((desty-cypos)/ss_STEPS);
 ss_INTERVAL = setInterval('ss_scrollWindow('+ss_stepsize+','+desty+',"'+anchor+'")',10);
 
 if (window.event) {
   window.event.cancelBubble = true;
   window.event.returnValue = false;
 }
 if (e && e.preventDefault && e.stopPropagation) {
   e.preventDefault();
   e.stopPropagation();
 }
}

function ss_scrollWindow(scramount,dest,anchor) {
 wascypos = ss_getCurrentYPos();
 isAbove = (wascypos < dest);
 window.scrollTo(0,wascypos + scramount);
 iscypos = ss_getCurrentYPos();
 isAboveNow = (iscypos < dest);
 if ((isAbove != isAboveNow) || (wascypos == iscypos)) {
   window.scrollTo(0,dest);
   clearInterval(ss_INTERVAL);
   location.hash = anchor;
 }
}

function ss_getCurrentYPos() {
 if (document.body && document.body.scrollTop)
   return document.body.scrollTop;
 if (document.documentElement && document.documentElement.scrollTop)
   return document.documentElement.scrollTop;
 if (window.pageYOffset)
   return window.pageYOffset;
 return 0;
}

function ss_addEvent(elm, evType, fn, useCapture)
{
 if (elm.addEventListener){
   elm.addEventListener(evType, fn, useCapture);
   return true;
 } else if (elm.attachEvent){
   var r = elm.attachEvent("on"+evType, fn);
   return r;
 }
}  

var ss_INTERVAL;
var ss_STEPS = 25;

ss_addEvent(window,"load",ss_fixAllLinks);