var ranimg = new Array();
ranimg[0]="http://y38.org/images/backgrounds/01.jpg";
ranimg[1]="http://y38.org/images/backgrounds/02.jpg";
ranimg[2]="http://y38.org/images/backgrounds/03.jpg";
ranimg[3]="http://y38.org/images/backgrounds/04.jpg";
ranimg[4]="http://y38.org/images/backgrounds/05.jpg";
ranimg[5]="http://y38.org/images/backgrounds/06.jpg";
ranimg[6]="http://y38.org/images/backgrounds/07.jpg";
ranimg[7]="http://y38.org/images/backgrounds/08.jpg";
ranimg[8]="http://y38.org/images/backgrounds/09.jpg";
ranimg[9]="http://y38.org/images/backgrounds/10.jpg";
ranimg[10]="http://y38.org/images/backgrounds/11.jpg";
ranimg[11]="http://y38.org/images/backgrounds/12.jpg";
ranimg[12]="http://y38.org/images/backgrounds/13.jpg";
ranimg[13]="http://y38.org/images/backgrounds/14.jpg";
var mai = Math.floor(ranimg.length*Math.random());
ranimg = ranimg[Math.floor(mai)];
document.writeln('<style type="text/css">'+"\n"+'<!--'+"\n"+'body{background:#fff url("'+ ranimg +'") no-repeat left top;}'+"\n"+'-->'+"\n"+'</style>');