/*--------------------------------------------------------------------------*
 *  
 *  SmoothScroll JavaScript Library beta1
 *  
 *  MIT-style license.
 *  
 *  2007 Kazuma Nishihata
 *  http://www.webcreativepark.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
//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)
arguments.callee(start,end,flag);

}else if(flag=="down" && start <= end){
start=start+(end-start)/20+1;

window.scrollTo(0,start)
arguments.callee(start,end,flag);

}else{
scrollTo(0,end);
}
}
,200
);

}
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)}
}
}
});

}