//rollover
$(document).ready(function() {
$("img").each(function(){
var offSrc = $(this).attr("src");
var onSrc = offSrc.replace("_off.","_on.");
$(this).hover(
function() { $(this).attr("src",onSrc); }
,function() { $(this).attr("src",offSrc); }
);
});
});

//smoothscroll
(function(){
var easing = 0.1;
var interval = 10;
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 = (targetX - currentX) * easing;
var vy = (targetY - currentY) * easing;
var nextX = currentX + vx;
var nextY = currentY + vy;
if((Math.abs(vx) < 1 && Math.abs(vy) < 1)
 || (prevX === currentX && prevY === currentY)){
scrollTo(targetX, targetY);
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);
}
}
}());