i met a problem when tried to put some data in my block. I have div structure like this:
<div class="1">
    <div class="2">
        <div class="3">
            <div class="4"></div>
         </div>
         <div class="5"></div>
    </div>
</div>
 <div class="1">
    <div class="2">
        <div class="3">
            <div class="4"></div>
         </div>
         <div class="5"></div>
    </div>
</div>
...
and i need to place some data only in<div class="4"></div>
when i use this JS:
function sendDataChild(btn) {
var form = $(btn).closest('FORM[name=answer-form]');
var data = form.serialize();
$.ajax({
    type: "POST",
    url: url,
    dataType: "json",
    data: data,
    cache: false,
    success: function (data) {
        form[0].reset();
        $("div.4").html(data.error_name);
    },
    error: function (xhr, str) {
        alert('Возникла ошибка: ' + xhr.responseCode);
    }
});
return false;
};
it puts data in all div's with class = "4"
I tried to find parent, but it just put data in parent:
$("div.4").parent().html(data.error_name);
Can U advise how to make it right? P.S I used numbers just for example.)
 
     
    