function validateUsername(oSrc, args) {
    if (document.getElementById("ctl00_ContentPlaceHolder1_txtAvailability").value == "Unavailable") {
        args.IsValid = false;
    }
}

function validateCharPassword(oSrc, args) {
    var oPassword = document.getElementById("ctl00_ContentPlaceHolder1_txtPassword").value
    re = /^[0-9a-zA-Z\_]*$/;
    if (!re.exec(oPassword)) {
        args.IsValid = false;
    }
}

function validatePasswordsMatch(oSrc, args) {
    if (document.getElementById("ctl00_ContentPlaceHolder1_txtPassword").value == document.getElementById("ctl00_ContentPlaceHolder1_txtCPassword").value) {
        args.IsValid = true;
    }
    else {
        args.IsValid = false;
    }
}

function chkAgree(oSrc, args) {
            if (!(document.getElementById('ctl00_ContentPlaceHolder1_chkAgree').checked)) {
                args.IsValid = false;
            }
            else {
                args.IsValid = true;
            }
        }

        function validatePasswordLength(oSrc, args) {
            if (document.getElementById("ctl00_ContentPlaceHolder1_txtPassword").value.length >= 6)
            {
                args.IsValid = true;
            }
            else {
                args.IsValid = false;
            }
        }