$(function(){
   setInterval("ad_man()",3000);
});
function ad_man(){
var man1 = document.getElementById("man1");
var man2 = document.getElementById("man2");
if(man1.style.display=="block"){
 ad_man_(man1);
 man1.style.display="none";
 man2.style.display="block";
 ad_man_(man2); 
}else{
 ad_man_(man2); 
 man2.style.display="none";
 man1.style.display="block";
 ad_man_(man1); 
}
}
function ad_man_(obj){
with(obj){
      if(obj.filters)filters.blendTrans.apply();
      style.visibility=style.visibility=='hidden'?'':'hidden';
      if(obj.filters)filters.blendTrans.play();
     }
}