通过Ajax删除图像

Very recently I have started programming and I'm currently running into an issue to which I hope you can help:

• Ajax executes the upload.php page which succesfully deletes the file from the server and from the MySQL table
• The Ajax result however is an error message and the image is not removed from Page.php unless reloaded.

Page.php

    <div class="row no-collapse 50% uniform">
    <?php
    while($row = mysqli_fetch_array($SubEntries_SQL)) {
        $fileURL = "upload/" . $_SESSION['adminID'] . "/" . $row['filename'];
        $fileId = $row['id'];
        $fileName = $row['filename'];
        if (!file_exists($fileURL)) {  $fileURL = $sub_entryThumbURL = "../../images/no_img.png"; }

    ?>                          

        <div class="2u" id="success">                   
            <span class="image fit 50%">
                <a href="javascript:void(0)" onclick="RemoveItem('<?=$fileId;?>','<?=$fileName;?>')">
                    <img src="<?=$fileURL;?>" border="0" class="thumb" />
                </a>
            </span>
        </div>

    <?php
    }   
    ?>
    </div

Ajax function

    function RemoveItem(itemId,ItemName) {
        $.ajax({
            'url': 'content/upload.php', 
            'type': 'POST',
            'data': {itemId: itemId, name: ItemName, request: 2}, 
            'success': function(data) {
                 if (data == 1) {
                    $(".success").fadeIn(500).delay(2000).fadeOut(500);
                }
            },
            'error': function () {
                alert("error");
            }
          });
        }