var currentSetupTagFieldId = '';

function getSetupTagFieldId() {
  return currentSetupTagFieldId;
}

function setSetupTagFieldId(inputFieldId) {
  if(currentSetupTagFieldId != '') {
    var oldField = document.getElementById(currentSetupTagFieldId);
    oldField.style.backgroundColor = '#FFFFFF';
  }
  currentSetupTagFieldId = inputFieldId;
  var target = document.getElementById(inputFieldId);
  if(target != null) {
    target.style.backgroundColor = '#B5E7FF';
  }
}

function clearTargetField(targetFieldId) {
  try {
    var target = document.getElementById(targetFieldId);
    target.value = '';
  } catch(e) {}
}

function checkInviteEmailField() {
  var inputs = document.getElementsByTagName("input");
  var count = 0;
  for( var i = 0; i < inputs.length; i++) {
    if(inputs[i].type == 'text' && inputs[i].name.indexOf('email_',0) != -1) {
      if(inputs[i].value != '') {
        count++;
      }
    }
  }
  if(count == 0) {
    return false;
  } else {
    return true;
  }
}