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_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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];}
}

// 更新日取得
function update(){
//operaは除外
var ua = navigator.userAgent;
// macは除外
var Mac=(navigator.userAgent.indexOf("Mac")!=-1);

if(Mac) {
	null;
} else if (ua.match(/Opera[\/\s](\d\.\d+)/)) {
	null;
} else  {
	myModify = document.lastModified;
	myD = new Date(myModify);
	myYear = myD.getYear();
	myYear4 = (myYear < 2000) ? myYear+1900 : myYear;
	myMonth = myD.getMonth() + 1; 
	myDate = myD.getDate(); 
	myStr = "最終更新日 " + myYear4 + "." + myMonth + "." + myDate;
	document.write( myStr ); 
	}
}

// マウスオーバーで背景変更
function changebackimageNN(id,img){	
		if(document.layers){
				document.layers[id].background.src=img;
		}
		if(document.all){
				document.all[id].style.backgroundImage="url("+img+")";
		}
		if(!document.all&&document.getElementById){
				document.getElementById(id).style.backgroundImage="url("+img+")";
		}
}