function toggleTab(module,section) {
  var uls = document.getElementById(module).getElementsByTagName('ul');

  var tabs = new Array();
  for (i=0;i<uls.length;i++)
  if (uls[i].className == 'tabs') tabs = uls[i].getElementsByTagName('li');

  var divs = document.getElementById(module).getElementsByTagName('div');

  var sections = new Array();
  for (i=0;i<divs.length;i++)
  if (divs[i].className == 'section') sections[sections.length++] = divs[i];

  if (tabs.length != sections.length) {
  alert('Внимание: Выбраное Вами поле ('+tabs.length+') имеет другой номер ('+sections.length+')');
  return;
  }

  section = section-1;
  for (i=0;i<tabs.length;i++) {
  if (i == section) tabs[i].className = 'vkl'
  else tabs[i].className = '';
  }

  for (i=0;i<sections.length;i++) {
  if (i == section) sections[i].style.display = 'block';
  else sections[i].style.display = 'none';
  }
}