function limitText(limitField, limitCount, limitNum) {
    if (limitField.value.length > limitNum) {
        limitField.value = limitField.value.substring(0, limitNum);
    } else {
        limitCount.value = limitNum - limitField.value.length;
    }
}

function switchImage(imgDocID,imgObjName,noimage)
{
    var image = document.getElementById(imgObjName);
    document.images[imgDocID].src = image.value;
}