function showtag(tagname,tagclass,num,count,more) {
    for(var i=0;i<count;i++) {
     var tag = document.getelementbyid(tagname+"_tab_"+i);
     var cont = document.getelementbyid(tagname+"_cont_"+i);
     var mores;
     if(more) {
      mores = document.getelementbyid(tagname+"_more_"+i);
      }
     if(i==num) {
      tag.classname = tagclass+"on";
      cont.style.display = "block";
      if(more) {
      mores.style.display = "block";
      }
      } else {
       tag.classname = tagclass;
          cont.style.display = "none";
       if(more) {
      mores.style.display = "none";
      }
       }
     }
   }