function logo_rotate(){
	img = new Array();
	img[0] = "case/case001/img/ph01.jpg";
	img[1] = "case/case002/img/ph01.jpg";
	img[2] = "case/case003/img/ph01.jpg";
	img[3] = "case/case004/img/ph01.jpg";
	img[4] = "case/case005/img/ph01.jpg";
	img[5] = "case/case006/img/ph01.jpg";
	img[6] = "case/case007/img/ph01.jpg";
	img[7] = "case/case008/img/ph01.jpg";
	img[8] = "case/case009/img/ph01.jpg";
	img[9] = "case/case010/img/ph01.jpg";
	img[10] = "case/case011/img/ph01.jpg";
	img[11] = "case/case012/img/ph01.jpg";
	n = Math.floor(Math.random()*img.length);
    document.write("<a href='case/index.html'><img src='"+img[n]+"' border='0'></a>");

}

function link_rotate(){
	link = new Array();
	link[0] = "<div><a href='case/case001/index.html'>●フラール様</a></div>";
	link[1] = "<div><a href='case/case002/index.html'>●マイティスペース様</a></div>";
	link[2] = "<div><a href='case/case003/index.html'>●熱海シーサイドスパ様</a></div>";
	link[3] = "<div><a href='case/case004/index.html'>●スギヤマハウジング様</a></div>";
	link[4] = "<div><a href='case/case005/index.html'>●オーピーエム様</a></div>";
	link[5] = "<div><a href='case/case006/index.html'>●オーピーエム様</a></div>";
	link[6] = "<div><a href='case/case007/index.html'>●櫻文堂様</a></div>";
	link[7] = "<div><a href='case/case008/index.html'>●成和株式会社様</a></div>";
	link[8] = "<div><a href='case/case009/index.html'>●株式会社 シーイーシーソリューションズ様</a></div>";
	link[9] = "<div><a href='case/case010/index.html'>●株式会社 三慶商事様</a></div>";
	link[10] = "<div><a href='case/case011/index.html'>●株式会社 リバティーホーム様</a></div>";
	link[11] = "<div><a href='case/case012/index.html'>●株式会社 松菱様</a></div>";

	
	shuffle(link);
	document.write(link[0]);
	document.write(link[1]);
	document.write(link[2]);
	document.write(link[3]);
}

function shuffle(list) {
  var i = list.length;

  while (--i) {
    var j = Math.floor(Math.random() * (i + 1));
    if (i == j) continue;
    var k = list[i];
    list[i] = list[j];
    list[j] = k;
  }

  return list;
}