Sorting the $_items array according some field

{if isset($_items)}
 {foreach from=$_items item="item"}
  {if isset($item.venues_image_name)}
   <div class="item">
    <div class="container">
     <div class="row">
      <div class="col2">
       <div class="block_image">
        <a href="{jrProfile_item_url module="gsVenue"
        profile_url=$item.profile_url item_id=$item._item_id 
        title=$item.venues_title}">{jrCore_module_function 
        function="jrImage_display" module="gsVenue"
        type="venues_image" class="iloutline" item_id=$item._item_id 
        size="xsmall" crop="auto" alt=$item.user_name}</a>
       </div>
      </div>
     <div class="col10 last">
      <div class="p5">
       <h3><a href="{jrProfile_item_url module="gsVenue" 
       profile_url=$item.profile_url 
       item_id=$item._item_id title=$item.venues_title}">
       {$item.venues_title}</a></h3><br>
       <span class="normal">{$item.venues_text|
        jrCore_format_string:$item.profile_quota_id|
	strip_tags|truncate:180}</span>
      </div>
     </div>
    </div>
   </div>
  </div>
 {/if}
 {/foreach}
{/if}

<div class="block_content">
        {jrCore_list module="gsVenue" profile_id=$_profile_id 
	 order_by="venues_title  ASC" pagebreak="6" page=$_post.p pager=true}
</div>