var size=3;
var ads=[{'title':'sdagsdgs','logo':'/2011-11-14/e46a2621-07e8-4244-8765-9e484cef928e.jpg','url':'http://d.gamebbs.renren.com/'},{'title':'动漫网游强势来袭，我了个去','logo':'/2011-11-14/9948c952-59d5-4bf8-a3b0-a2e16fef784e.jpg','url':'http://wan.renren.com/xxrz/'},{'title':'不怕不怕了','logo':'/2011-11-14/fc4469df-01ce-4caf-8de8-9a41b2a38a85.jpg','url':'http://wan.renren.com/xxrz/'}, 0];

var ads1=Math.floor(Math.random()*size);//0~size-1
var ads2=Math.floor(Math.random()*size);
if(ads1==ads2){
ads2=(ads2+1>=size)?ads2=0:(ads2+1);
}
document.writeln("<a href='"+ads[ads1].url+"'><img border=0 width=\"229\" height=\"84\" src=\"http://www.91fun.com/wan/img"+ads[ads1].logo+"\" /></a>");
document.writeln("<a href='"+ads[ads2].url+"'><img border=0 width=\"229\" height=\"84\" src=\"http://www.91fun.com/wan/img"+ads[ads2].logo+"\" /></a>");