function menupart_title_click(div_id)
{
  var divArray = document.getElementsByTagName("div");
  for (var i = 0; i < divArray.length; i++)
  {
    if(divArray[i].className == 'sub2div' && divArray[i].id != div_id)
    {
      divArray[i].style.visibility = 'hidden';
      divArray[i].style.display = 'none';
    }
  }
  var requested_div = document.getElementById(div_id);
  requested_div.style.visibility = (requested_div.style.visibility == 'visible' ? 'hidden' : 'visible');
  requested_div.style.display = (requested_div.style.display == 'block' ? 'none' : 'block');
}

function showHideContactForm(button, formName, defaultControl)
{
    var form = document.getElementById(formName);
    var control = document.getElementById(defaultControl);
    form.style.display = form.style.display == 'none' ? 'block' : 'none';
    button.style.textDecoration = form.style.display == 'none' ? 'underline' : 'none';
    if(form.style.display == 'block')
	    control.focus();
}