function focusField (objField) {
        if (objField.className == 'fieldBlur') {
                objField.className = 'fieldFocus';
                objField.hiddenValue = objField.value;
                objField.value = '';
        }
}

function blurField (objField) {
        if (objField.value == '') {
                objField.className = 'fieldBlur';
                objField.value = objField.hiddenValue;
        }
}