Edit in JSFiddle

textarea.log {
    width: 70%;
    height: 300px;
    padding: 5px;
}
div.feedback {
    color: red;
    font-size: 0.5em;
    margin-top:-20px;
}
div.example {
    border: 2px solid #FF0000;
    margin-top: 20px;
    padding: 20px;
}
input {
    box-sizing: border-box;
    width: 276px;
    padding: 5px 7px;
    margin: 0;
    outline: 0;
    font-size: 1.1em;
    background: #fff;
    border: #e3e1d5 1px solid;
    border-radius: 2px;
    transition: all 0.15s ease-in-out;
}
table {
    margin: 1.6em 0;
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    background-color: transparent;
}
tbody {
    display: table-row-group;
    vertical-align: middle;
    border-color: inherit;
}
table th, table td {
    padding: 8px;
    line-height: 20px;
    text-align: left;
    vertical-align: middle;
    border-top: 1px solid #edece4
}

<table>
    <tr>
        <td>Date 1:</td>
        <td>
            <input type="text" id="example5" class="date" value="Click me." />
        </td>
    </tr>
    <tr>
        <td>Date 2:</td>
        <td>
            <input type="text" id="example6" class="date" value="Click me." />
        </td>
    </tr>
</table>
<textarea id="example5-log" class="log"></textarea>

$(".date").datepicker({
    onSelect: function (dateText, inst) {
        var onSelectEvent = new CustomEvent('onCustomSelect', {
            'detail': {
                id: this.id,
                dateText: dateText,
                instance: inst
            },
            bubbles: true,
            cancelable: true
        });
        this.dispatchEvent(onSelectEvent);
    }
});
$(document).on("onCustomSelect", ".date", function (event) {
    var box = $("#example5-log");
    var tmp = box.val() + '\n';
    tmp += "'onCustomSelect' was triggered by " + event.currentTarget.id + "\n";
    box.val(tmp);
});