// JavaScript Document
function toggleField (id) {
  fld = getFieldById(id);
  if (fld.style.display == 'none') {
    fld.style.display = 'block';
  }
  else {
    fld.style.display = 'none';
  }
  return true;
}

function showField (id) {
  fld = getFieldById(id);
  fld.style.display = 'block';
  return true;
}

function hideField (id) {
  fld = getFieldById(id);
  fld.style.display = 'none';
  return true;
}

function getRadio (nme) {
  frm = getFieldById('regex_form');
  cnt = frm.elements.length;
  for (i = 0; i < cnt; i++) {
    if (frm.elements[i].name == nme && frm.elements[i].checked) {
      return frm.elements[i].value;
    }
  }
  return true;
}

function getFieldById (fld) {
  var thisdetail;
  if (document.getElementById && document.getElementById(fld) != null) {
    return document.getElementById(fld);
  }
  else if (document.layers && document.layers[fld] != null) {
    return document.layers[fld];
  }
  else if (document.all) {
    return document.all(fld);
  }
  else {
    return true;
  }
}