change

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            <div class="row">
                <div class="col-md-12">
                    <div class="form-group">
                        <label for="kingaku" class="control-label">金額</label>
                        <input type="text" name="row[0].kingaku" class="kingaku form-control input-lg">
                    </div>
                </div>
            </div>
            <div class="row">
                <div class="col-md-12">
                    <div class="form-group">
                        <label for="kingaku" class="control-label">金額</label>
                        <input type="text" name="row[1].kingaku" class="kingaku form-control input-lg">
                    </div>
                </div>
            </div>

            <div class="row">
                <div class="col-sm-12">
                    <p class="margtop">
                    <input class="btn btn-default" type="button" value="戻る" onclick="history.back()">
                    <input class="btn btn-primary" type="button" value="検索" id="kensakuBtn">
                    </p>
                </div>
            </div>

    $(".kingaku")
    .on("blur", function(){
        var num = $(this).val();
        num = num.replace(/(\d)(?=(\d\d\d)+$)/g, '$1,');
        $(this).val(num);
    })
    .on("focus", function() {
        var num = $(this).val();
        num = num.replace(/,/g, '');
        $(this).val(num);
    })
    .on("keypress", function(event) {
        if(event.which != 8 && isNaN(String.fromCharCode(event.which))){
            event.preventDefault();
        }
    })

    $("#kensakuBtn").on("click", function() {
        //検索ボタン押下時の入力チェック
        var pattern = /^([1-9]\d*|0)$/;
        $(".kingaku").each(function() {
            if ( !pattern.test($(this).val().replace(/,/g, '')) ) {
                alert(this.name + ($(".kingaku").index(this)+1));
                //ev.preventDefault();
                
            }
        });
    });

    $("form").submit(function(){ 

        //submitならカンマはじく
        $(".kingaku").val($(".kingaku").val().replace(/,/g, ''));
    });


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