window.addEvent('domready', function() {
    var values = new Array();
    $$('input.text','input.captcha','textarea.textarea').each(function(el, idx){
        values[idx] = el.value;
        el.addEvents({
            'focus': function(){if (el.value == values[idx]) el.value = ''; el.addClass('highlight');},
            'blur': function(){if (el.value == '') el.value = values[idx]; el.removeClass('highlight');}
        });
    })
});