function checkAgreement()
{
    var chkAgreement = document.getElementById("chkAgreement");

    if(chkAgreement != null && chkAgreement != 'undefined')
    {
        if(chkAgreement.checked)
        {
            return true;
        }
        else
        {
            alert("You must agree to the terms and conditions\nof the DisplayLink End User License Agreement ");
			return false;
        }
    }
}