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_indexpreloadImages() { //v3.0

	imgitem = new Array();

	imgitem[0] = "../img/top_main1.jpg";
	imgitem[1] = "../img/top_main2.jpg";
	imgitem[2] = "../img/top_main3.jpg";

	//乱数を発生させ一番近い整数を返す
//	i = Math.floor(Math.random() * imgitem.length);
	x=Math.floor(Math.random()*3);

	document.moveimg.src=imgitem[x];
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_indexpreloadImages.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];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


function topimg	(){
	 var imglist = new Array(
      "img/top_main1.jpg class='main_img'",
      "img/top_main2.jpg class='main_img'",
      "img/top_main3.jpg class='main_img' ");
   var selectnum = Math.floor((Math.random() * 100)) % imglist.length;
   var output = "<img src=" + imglist[selectnum] + " />";
   document.write(output);
}

function showLastUpdate() {
if(navigator.userAgent.indexOf("Safari") != -1)
	return;
var now = new Date();
var prev = new Date();
var last = new Date();
var stamp = new Date(document.lastModified);
prev.setTime(now.getTime() - 12*60*60*1000);
if(prev.getTime() > stamp.getTime()) {
	last = prev;
}
else {
	last = stamp;
}
document.write("[最終更新日: ",last.getFullYear(),"/",last.getMonth()+1,"/",last.getDate(),"]");
}