function checkPasswords(sender, args) {
    var pass1 = document.getElementById("ctl00_ContentPlaceHolder1_txtPass");
    var pass2 = document.getElementById("ctl00_ContentPlaceHolder1_txtPass2");


    if ((pass1.value == pass2.value) || (pass2.value == "")) {
        args.IsValid = true;
        return;
    }

    args.IsValid = false;
}