// JavaScript Document
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

//2009リニューアル時追加
new function(){
     function setRollOver(){
         var imgs = document.images;
         if(!imgs){return;}
         var preload = [];
         for(var i=0;i<imgs.length;i++){
             var splitname = imgs[i].src.substring(imgs[i].src.lastIndexOf('.'),imgs[i].src.length);
             if((splitname)&&(imgs[i].parentNode.tagName=='A')&&(imgs[i].className=='imgover')){
                 //ファイル名を保存
                 imgs[i].src_rollout = imgs[i].src;
                 imgs[i].src_rollover = imgs[i].src.replace(splitname, '_over' + splitname);

                 //ロールオーバー・アウト処理それぞれを設定
                 addEvent(imgs[i],'mouseover',function(){this.src =  this.src_rollover;});
                 addEvent(imgs[i],'mouseout',function(){this.src =  this.src_rollout;});

                 //プリロード
                 var l = preload.length;
                 preload[l] = new Image();
                 preload[l].src = imgs[i].src_rollover;
             }
         }
     }

     // イベントを追加する関数

     function addEvent(eventTarget, eventName, func){
         if(eventTarget.addEventListener){
             // モダンブラウザ
             eventTarget.addEventListener(eventName, func, false);
         }else if(window.attachEvent){
             // IE
             eventTarget.attachEvent('on'+eventName, function() {func.apply(eventTarget);});
         }
     }

     // setRollOver()をドキュメント読み込み完了時に実行する
     addEvent(window,'load',setRollOver);

}