for (var i=0; i<5; i++){
   var img = 'button-'+(i+1);
   var srcimg = '/images/design/menu/button/'+img+'.jpg';
   img = new Image;
   img.src = srcimg;
 }
 for (var i=0; i<5; i++){
   var img_r = 'button-'+(i+1)+'-hover';
   var srcimg = '/images/design/menu/button/'+img_r+'.jpg';
   img_r = new Image;
   img_r.src = srcimg;
 }

function kiyokshin_over(id){
        
     if (3 == id) {//alert(id)
        //$(".kiyokshin").css("display","none");
        document.getElementById('kiyokshin').style.display = "block";
        //$('#kiyokshin').animate({opacity: 1.0}, 200);
     }
 } 
 
function kiyokshin_out(id){
     if (3 == id) {//alert(id)
        //$(".kiyokshin").css("display","none");
        document.getElementById('kiyokshin').style.display = "none";
     }
 } 
 function on_mouse(el1,el2) {
   document.getElementById(el1).className = el2;
 }

 function go_url(url) {
   window.location.href=url;
 }