function showHide(idName)
{
    var obj = document.getElementById(idName);
    if(obj)
        obj.style.display = (obj.style.display == "none" ? "block" : "none");
}

function isValidLength(sender, args)
{
    args.IsValid = ((args.Value).length >= 8);
}
function closeWin(idName)
{
    var obj = document.getElementById(idName);
    obj.style.display="none";
    return false;
}
function showImage(objname,imagesource)
{
    var obj = document.getElementById(objname);
    if(obj)
        obj.src = imagesource;
}