/*--------------------------------------------------------------------------*
*  
*  SmoothScroll JavaScript Library beta2
*  
*  MIT-style license. 
*  
*  2007-2010 Kazuma Nishihata 
*  http://www.to-r.net
*  
*--------------------------------------------------------------------------*/
new function(){
/*
*イベント追加用
-------------------------------------------------*/
function addEvent(elm,listener,fn){
try{ // IE
elm.addEventListener(listener,fn,false);
}catch(e){
elm.attachEvent(
"on"+listener
,function(){
fn.apply(elm,arguments)
}
);
}
}
/*
*スムーズスクロール
-------------------------------------------------*/
function SmoothScroll(a){
if(document.getElementById(a.rel.replace(/.*\#/,""))){
var e = document.getElementById(a.rel.replace(/.*\#/,""));
}else{
return;
}
//移動位置
var end=e.offsetTop
var docHeight = document.documentElement.scrollHeight;
var winHeight = window.innerHeight || document.documentElement.clientHeight
if(docHeight-winHeight<end){
end = docHeight-winHeight;
}
//現在位置
var start=window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
var flag=(end<start)?"up":"down";
function scrollMe(start,end,flag) {
setTimeout(
function(){
if(flag=="up" && start >= end){
start=start-(start-end)/20-1;
window.scrollTo(0,start)
scrollMe(start,end,flag);
}else if(flag=="down" && start <= end){
start=start+(end-start)/20+1;
window.scrollTo(0,start)
scrollMe(start,end,flag);
}else{
scrollTo(0,end);
}
return ;
}
,10
);
}
scrollMe(start,end,flag)
}
/*
*スムーズ変換スクリプト
-------------------------------------------------*/
addEvent(window,"load",function(){
var anchors = document.getElementsByTagName("a");
for(var i = 0 ; i<anchors.length ; i++){
if(anchors[i].href.replace(/\#[a-zA-Z0-9]+/,"") == location.href.replace(/\#[a-zA-Z0-9]+/,"")){
anchors[i].rel = anchors[i].href;
anchors[i].href = "javascript:void(0)";
anchors[i].onclick=function(){SmoothScroll(this)}
}
}
});

}