function ss_fixAllLinks() {  
 // Get a list of all links in the page  
 var allLinks = document.getElementsByTagName('a');  
 // Walk through the list  
 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)) {  
     // If the link is internal to the page (begins in #)  
     // then attach the smoothScroll function as an onclick  
     // event handler  
     ss_addEvent(lnk,'click',smoothScroll);  
   }  
 }  
}  
 
function smoothScroll(e) {  
 // This is an event handler; get the clicked on element,  
 // in a cross-browser fashion  
 if (window.event) {  
   target = window.event.srcElement;  
 } else if (e) {  
   target = e.target;  
 } else return;  
   
 // Make sure that the target is an element, not a text node  
 // within an element  
 if (target.nodeType == 3) {  
   target = target.parentNode;  
 }  
   
 // Paranoia; check this is an A tag  
 if (target.nodeName.toLowerCase() != 'a') return;  
   
 // Find the <a name> tag corresponding to this href  
 // First strip off the hash (first character)  
 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 we didn't find a destination, give up and let the browser do  
 // its thing  
 if (!destinationLink) return true;  
   
 // Find the destination's position  
 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;  
 }  
   
 // Stop any current scrolling  
 clearInterval(ss_INTERVAL);  
   
 cypos = ss_getCurrentYPos();  
   
 ss_stepsize = parseInt((desty-cypos)/ss_STEPS);  
 ss_INTERVAL = setInterval('ss_scrollWindow('+ss_stepsize+','+desty+',"'+anchor+'")',10);  
   
 // And stop the actual click happening  
 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)) {  
   // if we've just scrolled past the destination, or  
   // we haven't moved from the last scroll (i.e., we're at the  
   // bottom of the page) then scroll exactly to the link  
   window.scrollTo(0,dest);  
   // cancel the repeating timer  
   clearInterval(ss_INTERVAL);  
   // and jump to the link directly so the URL's right  
   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)  
// addEvent and removeEvent  
// cross-browser event handling for IE5+,  NS6 and Mozilla  
// By Scott Andrew  
{  
 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 = 15;  
 
ss_addEvent(window,"load",ss_fixAllLinks);