var ranimg = new Array();
ranimg[0]="images/topImage/topImage01.jpg";
ranimg[1]="images/topImage/topImage02.jpg";
ranimg[2]="images/topImage/topImage03.jpg";
ranimg[3]="images/topImage/topImage04.jpg";
ranimg[4]="images/topImage/topImage05.jpg";
ranimg[5]="images/topImage/topImage06.jpg";
ranimg[6]="images/topImage/topImage07.jpg";
ranimg[7]="images/topImage/topImage08.jpg";
ranimg[8]="images/topImage/topImage09.jpg";
ranimg[9]="images/topImage/topImage10.jpg";
ranimg[10]="images/topImage/topImage11.jpg";
ranimg[11]="images/topImage/topImage12.jpg";
var mai = Math.floor(ranimg.length*Math.random());
ranimg = ranimg[Math.floor(mai)];
document.writeln('<style type="text/css">'+"\n"+'<!--'+"\n"+'div#topPage{background:url("'+ ranimg +'") no-repeat right top;}'+"\n"+'-->'+"\n"+'</style>');