function a(act)
  {
  document.datainput.act.value=act;
  if (act=='drop')
    {
    if (confirm('Eliminare questo file?'))
      {
      document.datainput.submit();
      }
    }
  else
    {
    document.datainput.submit();
    }
  }
  
function x(frame,script)
  {
  document.datainput.act.value='exec';
  document.datainput.r.value='main';
  document.datainput.f.value=frame;
  document.datainput.s.value=script;
  document.datainput.submit();
  }
  
function e(reference,frame)
  {
  document.datainput.act.value='edit';
  document.datainput.r.value=reference;
  document.datainput.f.value=frame;
  document.datainput.submit();
  }

function chooseimages()
  {
  window.open('showimages.php','images','width=550, height=500, top=100, left=100');
  }
  
function insertlink()
  {
  window.open('insertlink.php','link','width=550, height=500, top=100, left=100');
  }