// front end form functions
  
  function clearDefaultValue( input, defaultValue )           // if this input has the default value at the time of focus, clear it so the user can type in their own value
  {
    if( input.value == defaultValue ) input.value = "";
  }

  function restoreDefaultValue( input, defaultValue )           // if this input box is left blank, restore the default value
  {
    if( input.value == "" ) input.value = defaultValue;
  }