function arrowsLeft(id){
   var myAnim = new YAHOO.util.Motion(
     id, { 
           points : { by:[1000,0] }} , //移動           
         8,//速さ
         YAHOO.util.Easing.easeOut//Easingエフェクト
   );
   myAnim.animate();
 }
 
  function arrowsLeftLeft(id){
   var myAnim = new YAHOO.util.Motion(
     id, { 
           points : { by:[1000,0] }} , //移動           
         2,//速さ 小さいほどほど早い
         YAHOO.util.Easing.easeOut//Easingエフェクト
   );
   myAnim.animate();
 }
 
 
  function arrowsRight(id){
   var myAnim = new YAHOO.util.Motion(
     id, { 
           points : { by:[-1000,0] }} , //移動 
         8,//速さ
         YAHOO.util.Easing.easeOut//Easingエフェクト
   );
   myAnim.animate();
 }
 
  function arrowsRightRight(id){
   var myAnim = new YAHOO.util.Motion(
     id, { 
           points : { by:[-1000,0] }} , //移動 
         2,//速さ
         YAHOO.util.Easing.easeOut//Easingエフェクト
   );
   myAnim.animate();
 }