before button onclick spring form submission validate the form

Image show the validation properly, when i click on save button it validate that glElement selected twice or duplicate simulataneously it submit the form what i want befor submission of form the form validate

below is my code and approach ==========================================

<div id="preacq" class="MICss">
                        <div id="linkopen">
                            <div class="span5">
                                <label class="abc" style="margin-bottom: 1px;"> <spring:message
                                        code="MinorityInterest.elementName" /></label>
                                <form:select id="glListName0" path="glElementId"
                                    name="glListName[]" class="input-block-level" size="1" multiple="bbn">
                                </form:select>
                            </div>

                            <div class="span5">
                                <label class="abc" style="margin-bottom: 1px;"> <spring:message
                                        code="MinorityInterest.AccountType" /></label>
                                <form:select path="accountType" id="accountName0"
                                    name="accountName" class="input-block-level" multiple="bbn">
                                    <option value="0">select</option>
                                    <option value="1">Debit</option>
                                    <option value="2">Credit</option>
                                </form:select>
                            </div>

                            <div class="span5">

                                <label class="abc" style="margin-bottom: 1px;"><spring:message
                                        code="MinorityInterest.preAcq" /></label> <input type="text"
                                    name="preAcqSurPlus" id="preacqas0" class="input-block-level abc"
                                    path="preAcqSurPlus" onblur="checkPreAmount(this.id)"></input>
                            </div>

                            <div class="span5">
                                <label class="abc" style="margin-bottom: 1px;"> <spring:message
                                        code="MinorityInterest.Share" /></label> <input type="text"
                                    name="Shares" id="share0" path="Shares" class="input-block-level abc"></input>
                            </div>

                            <div class="span2" style="margin-top: 15px;">
                                            <div class="add_remove">
                                                <a><img onclick="addMore(this)"
                                                    src="<%=Config.getStaticURL()%>resources/img/Add-field.png" /></a>
                                            </div>
                                            <div class="add_remove">
                                                <a><img onclick="removeMI(this)" src= "<%=Config.getStaticURL()%>resources/img/remove-field.png" /></a>
                                            </div>
                                        </div>
                        </div>

                        <script type="text/javascript">
                            function addMore(btn) {

                                alert("adddiv"+btn);
                                 var source = $(btn).closest(".MICss");
                                    cloned = source.clone();
                                    cloneCount = 0;
                                cloned.hide().insertAfter(source).slideDown(200);
                                $('.MICss[id^=preacq]').each(function(){
                                    $(this).attr('id', 'preacq'+cloneCount);
                                    $.each($(this).find('*[id]'), function(){
                                        var id = $(this).attr('id').replace(/[0-9]/g,'');
                                        $(this).attr('id', id+cloneCount);
                                    });
                                    cloneCount++;
                                });
                            }

                        </script>

                        <script>

function removeMI(btn){

        //  $($(btn).data('parent-id')).remove();
       if($('.MICss[id^=preacq]').length <= 1){
           alert("No more textbox to remove");
           return false;
       }
       $(btn).closest(".MICss").slideUp(200, function(){
           $(this).remove();
       });
}
</script>
                    </div>
                </div>
                <div class="span5" style="float: left;width:38%">
            <label class="abc" style="margin-bottom: 1px; margin-top:67px;  font-size: 17px; margin-left: 347px;"> <spring:message
                                        code="MinorityInterest.TotalAmount" /></label>
                </div>

                <div class="span5" style="float: right;">
                    <input type="text" style="margin-top: 67px;margin-left: -135px;width: 211px;">
                </div>
                <div class="span5" style="float: right;">
                    <input type="text" style="margin-top:67px;margin-left: -158px;width: 211px;">
                </div>
                <form:hidden path="parenCompanyId" id="PcId"/>
                <form:hidden path="childCompanyId" id="CcId"/>
                <form:hidden path="financialYearId" id="FyId"/>
                <form:hidden path="reportingPeriodId" id="rPId"/> 
                <div class="span6" style="float: right; margin-right: 0%">
                    <!-- <input id="saveMI" class="" type="button" value="Save" onclick="saveMI();"> -->
                    <button id="saveButtonId" name="save" value="save" onclick="saveMI();"
                        style="height: 30px; width: 50px;position: fixed; top: 627px;">save</button>
                </div>

            </form:form> 

my jsfile=======================my approach==================

/** * * * * @author Vaibhav * for form submission */

function saveMI(){

    $("#cmpCombo").val();
    $("#parentCmp").val();
    $("#financialYearId").val();
    $("#reportingPeriodId").val();


    $('#PcId').val($("#cmpCombo").val());
    $('#CcId').val($("#parentCmp").val());
    $('#FyId').val($("#financialYearId").val());
    $('#rPId').val($("#reportingPeriodId").val());


    /* this is gl element validation logic if duplicatye element is selected*/
    for ( var index = 0; index <= cloneCount; index++) {

        var contains = (removecnt.indexOf(index) > -1);
        elementId = $("#glListName" + index).val();
        for ( var k = 0; k <= cloneCount; k++) {
            if (k == index)
                continue;
            else {
                if ($("#glListName" + k)
                        .val() == elementId
                        && contains == false) {
                    alert("gl mein gya");
                    $("#addElementTotal"+ (index - 1));
                    $("#glListName" + k).addClass("field-error");
                    $("#amountError").hide();
                    $('#selectOtherElementError').show();
                    return false;
                }
                else{
                    alert("vaibhav");
                    $("#minorityForm").submit();
                }
            }
        }
    }   
}