var is_ie    = (navigator.userAgent.toLowerCase().indexOf("msie") != -1);

  function hm(obj){
    if(is_ie)try{obj.childNodes[2].style.display='none';}catch(e){}
  }

  function sm(obj){
    if(is_ie)try{obj.childNodes[2].style.display='block';}catch(e){}
  }