function getScroll(){

	var x, y ;

	if(document.all !== void 0 ){
		x = document.body.scrollLeft ;
		y = document.body.scrollTop ;
	}else if( document.layers !== void 0 ){
		x = window.pageXOffset ;
		y = window.pageYOffset ;
	}else{
		x = window.scrollX ;
		y = window.scrollY ;
	}

	return { x : x, y : y };

}


var SCROLL ;
var divCountScroller = 24 ;


function scroller( x, y, edging, count ){

	if( count === void 0 ){
		count = 0 ;
		SCROLL = getScroll();
	}

	if( count++ < divCountScroller ){
		var c = count/divCountScroller ;
		var nx = SCROLL.x+( x-SCROLL.x )*( c+edging/(100*Math.PI)*Math.sin( Math.PI*c ) );
		var ny = SCROLL.y+( y-SCROLL.y )*( c+edging/(100*Math.PI)*Math.sin( Math.PI*c ) );
		window.scrollTo( nx, ny );
		setTimeout( "scroller("+x+","+y+","+edging+","+count+");", 20); // 再描画時間 10[msec] 小さい程早い
	}

}