function cursor_position(obj_event)
{
	var position_X = 0;
	var position_Y = 0;

	// スクロール量
	var scrollLeft = document.body.scrollLeft || document.documentElement.scrollLeft;
	var scrollTop  = document.body.scrollTop  || document.documentElement.scrollTop;

	// IEか否かを判断し、カーソルの座標を取得
	if (navigator.appName == "Microsoft Internet Explorer"){
		position_X = scrollLeft + event.clientX;
		position_Y = scrollTop  + event.clientY;
	} else {
		position_X = scrollLeft + obj_event.clientX;
		position_Y = scrollTop  + obj_event.clientY;
	}
	return [position_X, position_Y];
}