function open_photo(id) {
  window.open('photo.html?action=detail&id='+id,'photo','width=500, height=540, scrollbars=yes');
}

var img=new Array();
img[0]=new Image(),img[0].src="_img/menu_top_profile1.gif";
img[1]=new Image(),img[1].src="_img/menu_top_schedule1.gif";
img[2]=new Image(),img[2].src="_img/menu_top_news1.gif";
img[3]=new Image(),img[3].src="_img/menu_top_blog1.gif";
img[4]=new Image(),img[4].src="_img/menu_top_photo1.gif";
img[5]=new Image(),img[5].src="_img/menu_top_mail1.gif";
img[6]=new Image(),img[6].src="_img/menu_top_link1.gif";
img[7]=new Image(),img[7].src="_img/menu_top_disco1.gif";
img[8]=new Image(),img[8].src="_img/menu_top_bbs1.gif";


var img2=new Array(); 
img2[0]=new Image(),img2[0].src="_img/menu_top_profile2.gif";
img2[1]=new Image(),img2[1].src="_img/menu_top_schedule2.gif";
img2[2]=new Image(),img2[2].src="_img/menu_top_news2.gif";
img2[3]=new Image(),img2[3].src="_img/menu_top_blog2.gif";
img2[4]=new Image(),img2[4].src="_img/menu_top_photo2.gif";
img2[5]=new Image(),img2[5].src="_img/menu_top_mail2.gif";
img2[6]=new Image(),img2[6].src="_img/menu_top_link2.gif";
img2[7]=new Image(),img2[7].src="_img/menu_top_disco2.gif";
img2[8]=new Image(),img2[8].src="_img/menu_top_bbs2.gif";


var img3=new Array();
img3[0]=new Image(),img3[0].src="_img/menu_page_top1.gif";
img3[1]=new Image(),img3[1].src="_img/menu_page_profile1.gif";
img3[2]=new Image(),img3[2].src="_img/menu_page_schedule1.gif";
img3[3]=new Image(),img3[3].src="_img/menu_page_blog1.gif";
img3[4]=new Image(),img3[4].src="_img/menu_page_bbs1.gif";
img3[5]=new Image(),img3[5].src="_img/menu_page_disco1.gif";
img3[6]=new Image(),img3[6].src="_img/menu_page_mail1.gif";

var img4=new Array(); 
img4[0]=new Image(),img4[0].src="_img/menu_page_top2.gif";
img4[1]=new Image(),img4[1].src="_img/menu_page_profile2.gif";
img4[2]=new Image(),img4[2].src="_img/menu_page_schedule2.gif";
img4[3]=new Image(),img4[3].src="_img/menu_page_blog2.gif";
img4[4]=new Image(),img4[4].src="_img/menu_page_bbs2.gif";
img4[5]=new Image(),img4[5].src="_img/menu_page_disco2.gif";
img4[6]=new Image(),img4[6].src="_img/menu_page_mail2.gif";


function reset_image(b){
  if ( document.images ){
    document.images["img_"+b].src = img[b].src ;
  }
}
function change_image(a){
  if ( document.images ){
    document.images["img_"+a].src = img2[a].src ;
  }
}

function reset_image2(b){
  if ( document.images ){
    document.images["img_"+b].src = img3[b].src ;
  }
}
function change_image2(a){
  if ( document.images ){
    document.images["img_"+a].src = img4[a].src ;
  }
}

function open_map() {
  mapwin = window.open('/map.html', 'map', 'width=376, height=490');
  mapwin.focus();
}

function show_ad() {
  var ads = [
    {"src" : 'the_hoi.jpg', "alt" : 'ザ・ホーイ　世界の方角が一目でわかる'},
    {"src" : 'mannenreki.jpg', "alt" : '総合 万年暦'}
  ];

  var ad = ads[Math.floor(Math.random() * ads.length)];

  document.getElementById('ad').innerHTML = '<img src="_img/ads/'+ad.src+'" alt="'+ad.alt+'">';
}