function chose_type_v(type_v){
 if (type_v=='zero') {
 	document.getElementById('file_1').style.display='none';
 	document.getElementById('title_0').style.display='block';
 }
  if (type_v=='one') {
 	document.getElementById('file_1').style.display='block';
 	document.getElementById('title_0').style.display='none';
 }

}