function setTab(name,cursel,n){
 for(i=1;i<=n;i++){
  var menu=document.getElementById(name+i);
  var con=document.getElementById("con_"+name+"_"+i);
  menu.className=i==cursel?"tab_active":"tab_normal";
  con.style.display=i==cursel?"block":"none";
 }
}

function setImg(cursel,n){
 for(i=1;i<=n;i++){
  var img=document.getElementById("img_"+i);
  var desc=document.getElementById("desc_"+i);
  var menu=document.getElementById("hots_list_"+i);
  img.style.display=i==cursel?"block":"none";
  desc.style.display=i==cursel?"none":"block";
  menu.className=i==cursel?"tab_active":"tab_normal";
 }
}