Добавление тегов с фронта через форму Tickets

[[!TicketForm? &requiredFields=`longtitle,introtext` &allowedFields=`longtitle,fullname,description,avtor,image,tags` &redirectUnpublished=`171` &tplFormCreate=`tpl.Tickets.form.create`]]

<script>  
window.onload=function(){document.getElementById('tags').value='';}
    function fcreateteg(value) {   
        var allteg=document.getElementById('tags').value+=value+','; 
    }

    function delznak() {  
        var allteg = document.getElementById('tags').value;   
        var allteg=allteg.slice(0, -1);       
        document.getElementById('tags').value=allteg; 
    }
    function fclear() {
        document.getElementById('tags').value='';
    }
</script>

<div id="tagi" class="form-group">
    	<label for="ticket-sections">Теги к статье </label>
        <select  multiple size="10" name="tagi" class="form-control" id="ticket-sections" onchange="fcreateteg(value);">
                    [[tagLister? &parents=`ВАШИ id` &sortBy=`tag` &key=`[[*tag]]` &target=`8` &limit=`50` &tpl=`tegTplform` ]]
         </select>
         
		<span class="error"></span>
        <label for="ticket-sections">Выбранные теги</label> <a class="tegiform" onclick="fclear();">очистить</a>
        <input  readonly type="text" class="form-control" placeholder="Выбранные теги" name="tags" value="" maxlength="350" id="tags"/>
	</div>

<div class="col-md-6 move-right">
			<input type="submit" class="btn btn-danger draft" name="draft" value="[[%ticket_draft]]" title="Ctrl + Shift + Enter" onclick="delznak();" />
			<input type="button" class="btn btn-primary publish" name="publish" value="[[%ticket_publish]]" title="" onclick="delznak();" />
		</div>

<option  value="[[+tag]]">[[+tag]]</option>