I have this Fieldset values..

<fieldset class="clearfix" id="fieldset-exception">
    <legend>Mass Edit Exception Information</legend>
        <div id="#error-msg-ID" class="ui-widget hide">
  <div class="ui-state-highlight ui-corner-all"> 
   <p><span style="float: left; margin-right: 0.3em;" class="ui-icon ui-icon-info"></span>
   <span></span></p>
  </div>
 </div>
    <div class="fiveper">
    <label for="ExceptionStatus">
            Status:
            <span> </span>
        </label>
         <label for="ResolutionCode">
            Resolution:
            <span>
           <%=Html.DropDownListFor(model => model.Exception.ResolutionCode, new SelectList(Model.LookupCodes["C_EXCPT_RESL"], "Key", "Value"))%>
            </span>
        </label>
         <label for="ReasonCode">
            Reason:
           <span><%=Html.DropDownListFor(model => model.Exception.ReasonCode, new SelectList(Model.LookupCodes["C_EXCPT_RSN"], "Key", "Value"))%></span>
        </label>
         <label for="ExceptionStatus">
            Action Taken:
           <span><%=Html.DropDownListFor(model => model.Exception.ActionCode, new SelectList(Model.LookupCodes["C_EXCPT_ACT"], "Key", "Value"))%></span>
        </label>
    </div>
    <div class="fiveper">
        <label for="FollowupDate">
            Follow-up:
             <span><input type="text" id="exc-flwup" name="fdate" /></span>
        <%--<%=Html.EditorFor(model=>model.Exception.FollowupDate) %>--%>
        </label>
        <label for="IOL">
            Inquiry #:
            <%=Html.TextBox("Inquiry", ViewData["inq"] ?? "")%>
        </label>
        <label>Comment</label>
        <span>
           <%=Html.TextArea("value", ViewData["Comnt"] ?? "")%>
           <%=Html.ValidationMessage("value")%>
          </span>
    </div>
    <br />
    <br />
<div> 
        <input type="submit" class="button" value="Save" />
</div>
</fieldset>

before submiting I need to do some time of validation..below validation not working for me is that right what I am doing here? These all fieds user is entering from UI.. thanks

<script type="text/javascript">
    $(document).ready(function() {

    $('#btnSelectAll').click(function() {
        $('#EditExceptions input[name=chk]').attr('checked', true);
    });
    $('#btnCancel').click(function() {
        $('#EditExceptions input[name=chk]').attr('checked',false);
    });
        function validate_excpt(formData, jqForm, options) {
            var form = jqForm[0];

            **if (form.e_Exception_ResolutionCode.value && !form.e_Exception_ReasonCode.value) {
                alert('All Resolution Codes need a Reason Code.');
                return false;
            }**  
        }
        // post-submit callback 
        function showResponse(responseText, statusText, xhr, $form) {

            if (responseText[0].substring(0, 16) != "System.Exception") {
                $('#error-msg-ID span:last').html('<strong>Update successful.</strong>');
                $().ShowDialog('Success', 'Update successful');
            } else {
                $('#error-msg-ID span:last').html('<strong>Update failed.</strong> ' + responseText[0].substring(0, 48));
                $().ShowDialog('Failed', 'Update failed');
            }
            $('#error-msg-ID').removeClass('hide');

   $('#gui-stat-').html(responseText[1]); 
        }

        $('#exc-').ajaxForm({
            beforeSubmit: validate_excpt,
            success: showResponse,
            dataType: 'json'
        });
        $('.button').button();
        $("input[id^='exc-flwup']").datepicker({
            duration: '',
            showTime: true,
            constrainInput: true,
            stepMinutes: 30,
            stepHours: 1,
            altTimeField: '',
            time24h: true,
            minDate: 0
        });
        $('#ui-timepicker-div').bgiframe();
    });
</script>