function checkCountAnswer(curr_obj, count_answer)
  {
       var count = 0;
    if (count_answer>1 || on_main_page) {
      if (document.getElementById('own_answer')) {
          obj = document.getElementById('answer100');
          if (obj.checked) count++;
      }

      for (var i = 0; i < max_count_answer; i++) {
        if (document.getElementById('answer'+i)) {
          obj = document.getElementById('answer'+i);
          if (obj.checked) count++;
        }
      }

      if (count>count_answer) {
        alert (msg_max_count_answer);
        if (curr_obj) curr_obj.checked = false;
        return false;
      }

     if (document.getElementById('own_answer')) {
       checkOwnAnswer(count_answer);
       if (!curr_obj && document.getElementById('answer100').checked && (document.getElementById('own_answer').value=='' || document.getElementById('own_answer').value==own_answer)) {
         alert(input_own_answer);
         return false;
       }
     }
   } else {
     if (document.getElementById('answer').value=='') {
	   return false;	
	 }   	
     if (document.getElementById('own_answer')) {
       checkOwnAnswer(count_answer);
       if (!curr_obj && document.getElementById('answer').value==100 && (document.getElementById('own_answer').value=='' || document.getElementById('own_answer').value==own_answer)) {
         alert(input_own_answer);
         return false;
       }
     }
     count = 1;
   }

   if (count==0) {
        return false;
   }

    return true;
  }

  function checkOwnAnswer(count_answer)
  {
      if (count_answer>1 || on_main_page) {
        document.getElementById('own_answer').style.display = document.getElementById('answer100').checked ? 'block' : 'none';
        document.getElementById('own_answer').disabled = !document.getElementById('answer100').checked ;
      } else {
        document.getElementById('own_answer').style.display = (document.getElementById('answer').value==100 ? 'block' : 'none');
        document.getElementById('own_answer').disabled = (document.getElementById('answer').value==100 ? false : true);
      }
      if (document.getElementById('own_answer').value == '')  document.getElementById('own_answer').value = own_answer;

  }