function setTab(m,n){   
 var tli=document.getElementById("sosober"+m).getElementsByTagName("li");   
 var mli=document.getElementById("sosobar"+m).getElementsByTagName("ul");   
 for(i=0;i<tli.length;i++){   
  tli[i].className=i==n?"hover":"";   
  mli[i].style.display=i==n?"block":"none";   
 }   
}