/*
This file includes the following script

■スムーズスクロール
Copyright (c) 2008 KAZUMiX
http://d.hatena.ne.jp/KAZUMiX/20080418/scrollsmoothly
Licensed under the MIT License:
http://www.opensource.org/licenses/mit-license.php
■ロールオーバー
■ブラウザセレクタ
CSS Browser Selector v0.3.5 (Feb 05, 2010)
Rafael Lima (http://rafael.adm.br)
http://rafael.adm.br/css_browser_selector
License: http://creativecommons.org/licenses/by/2.5/
Contributors: http://rafael.adm.br/css_browser_selector#contributors
■外部リンク
example:<a class="blank">
*/



(function(){
var easing = 0.20;
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;
}
var maxScroll = getScrollMaxXY();
targetX = Math.min(x, maxScroll.x);
targetY = Math.min(y, maxScroll.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;
setTimeout(function(){scroll()},interval);
}
}
function getDocumentSize(){
return {width:Math.max(document.body.scrollWidth, document.documentElement.scrollWidth), height:Math.max(document.body.scrollHeight, document.documentElement.scrollHeight)};
}
function getWindowSize(){
var result = {};
if(window.innerWidth){
var box = d.createElement('div');
with(box.style){
position = 'absolute';
top = '0px';
left = '0px';
width = '100%';
height = '100%';
margin = '0px';
padding = '0px';
border = 'none';
visibility = 'hidden';
}
d.body.appendChild(box);
var width = box.offsetWidth;
var height = box.offsetHeight;
d.body.removeChild(box);
result = {width:width, height:height};
}else{
result = {width:d.documentElement.clientWidth || d.body.clientWidth, height:d.documentElement.clientHeight || d.body.clientHeight};
}
return result;
}
function getScrollMaxXY() {
if(window.scrollMaxX && window.scrollMaxY){
return {x:window.scrollMaxX, y:window.scrollMaxY};
}
var documentSize = getDocumentSize();
var windowSize = getWindowSize();
return {x:documentSize.width - windowSize.width, y:documentSize.height - windowSize.height};
}
}());


function smartRollover() {
if(document.getElementsByTagName) {
var images = document.getElementsByTagName("img");
for(var i=0; i < images.length; i++) {
if(images[i].getAttribute("src").match("_off."))
{
images[i].onmouseover = function() {
this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
}
images[i].onmouseout = function() {
this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
}
}
}
}
}
if(window.addEventListener) {
window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
window.attachEvent("onload", smartRollover);
}
function css_browser_selector(u){var ua = u.toLowerCase(),is=function(t){return ua.indexOf(t)>-1;},g='gecko',w='webkit',s='safari',o='opera',h=document.documentElement,b=[(!(/opera|webtv/i.test(ua))&&/msie\s(\d)/.test(ua))?('ie ie'+RegExp.$1):is('firefox/2')?g+' ff2':is('firefox/3.5')?g+' ff3 ff3_5':is('firefox/3')?g+' ff3':is('gecko/')?g:is('opera')?o+(/version\/(\d+)/.test(ua)?' '+o+RegExp.$1:(/opera(\s|\/)(\d+)/.test(ua)?' '+o+RegExp.$2:'')):is('konqueror')?'konqueror':is('chrome')?w+' chrome':is('iron')?w+' iron':is('applewebkit/')?w+' '+s+(/version\/(\d+)/.test(ua)?' '+s+RegExp.$1:''):is('mozilla/')?g:'',is('j2me')?'mobile':is('iphone')?'iphone':is('ipod')?'ipod':is('mac')?'mac':is('darwin')?'mac':is('webtv')?'webtv':is('win')?'win':is('freebsd')?'freebsd':(is('x11')||is('linux'))?'linux':'','js']; c = b.join(' '); h.className += ' '+c; return c;}; css_browser_selector(navigator.userAgent);

//外部リンク written in styleswitch.js
window.onload = function() {
 var node_a = document.getElementsByTagName('a');
 for (var i in node_a) {
  if (node_a[i].className == 'blank') {
   node_a[i].onclick = function() {
    window.open(this.href, '', '');
    return false;
   };
  }
 }
};