ranimg = new Array(); 
ranimg[0]="/common/img/9.jpg"; 
ranimg[1]="/common/img/10.jpg"; 
ranimg[2]="/common/img/11.jpg"; 
ranimg[3]="/common/img/12.jpg"; 
ranimg[4]="/common/img/13.jpg"; 
ranimg[5]="/common/img/14.jpg"; 
ranimg[6]="/common/img/15.jpg"; 
ranimg[7]="/common/img/16.jpg";
ranimg[8]="/common/img/17.jpg";
ranimg[9]="/common/img/18.jpg";
xx = Math.floor(ranimg.length*Math.random()); 
ranimg = ranimg[Math.floor(xx)]; 
document.write ('<style type="text/css"><!-- h2#headimg {background-image: url("'+ ranimg +'");background-repeat: no-repeat;margin:0px;padding:0px;}--></style>');