var oImgs=new Array(     
"http://www.86bus.com/sub_banner/1.jpg",     
"http://www.86bus.com/sub_banner/2.jpg",     
"http://www.86bus.com/sub_banner/3.jpg",        
"http://www.86bus.com/sub_banner/4.jpg",      
"http://www.86bus.com/sub_banner/5.jpg",     
"http://www.86bus.com/sub_banner/6.jpg", 
"http://www.86bus.com/sub_banner/7.jpg"       
); 

var oUrls=new Array(     
"http://shop.artxun.com/category_Y2F0ZV9pZAk1Mw==.html",     
"http://shop.artxun.com/category_Y2F0ZV9pZAkxMDc=.html",     
"http://shop.artxun.com/category_Y2F0ZV9pZAk2NA==.html",          
"http://shop.artxun.com/category_Y2F0ZV9pZAkyMDc=.html",      
"http://shop.artxun.com/category_Y2F0ZV9pZAkxMTM=.html",    
"http://shop.artxun.com/category_Y2F0ZV9pZAkyMw==.html", 
"http://shop.artxun.com/category_Y2F0ZV9pZAkyMTI=.html", 
"http://shop.artxun.com/category_Y2F0ZV9pZAkxMjI=.html" 
); 
    
   
var n=oImgs.length;     
   
var currIndex=parseInt(Math.random() * n)     
   
document.write('<a href="'+oUrls[currIndex]+'" target=_blank><img src="'+oImgs[currIndex]+'" border=0 width="727" height="88"></a>');