function hideMenu(id, cls){var t = document.getElementById(id);t.className = 'hidemenu ' + cls;}function displayMenu(id, cls){var t = document.getElementById(id);t.className = 'displaymenu ' + cls;}function clearText(field){if (field.defaultValue == field.value) field.value = '';else if (field.value == '') field.value = field.defaultValue;}