/*--------------------------------------------------------------------------*

 *  

 *  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)}

			}

		}

	});



}