var rating = 1;

function showRating(rateVal) {

    for (i=1; i<=5; i++) {
        if (rateVal!=0) {
            imgSrc = (i<=rateVal)? 'star_on.gif' : 'star_off.gif';
        } else {
            imgSrc = (i<=rating)? 'star_on.gif' : 'star_off.gif';
        }
        document.getElementById('rating'+i).src = imgSrc;
    }
    return;
}

function setRating(rateVal) {
    rating = rateVal
    document.getElementById('rating').value = rateVal;
    return false;
}