function validate()
    {
        var arrCheckList;
        arrCheckList = [
             [document.getElementById("_ctl0_ddlCommentType"), "dlrequired", "Required", "_ctl0_SPCommentType"],   
             [document.getElementById("_ctl0_txtFollowupDate"), "required", "Required", "_ctl0_SpFollowupDate"],
             [document.getElementById("_ctl0_txtFollowupDate"), "date", " Invalid date", "_ctl0_SpInvalidDate"],
             [document.getElementById("_ctl0_txtMessage"), "required", " Required", "_ctl0_SpMessage"]
             
             
        ];

        return ValidateForm(arrCheckList, "_ctl0_tdError")
    }