Кнопка добавления товара в корзину

<button type="submit" class="btn btn-default" name="ms2_action" value="cart/add"><i class="icon icon-shopping-bag"></i> [[%ms2_frontend_add_to_cart]]</button>

<h1>[[*pagetitle]]</h1>
<div id="msProduct" class="row">
  <div class="span5 col-md-5">
	[[!msGallery]]
  </div>
  <div class="span7 col-md-7">
	<form class="form-horizontal ms2_form" method="post">
	  <input type="hidden" name="id" value="[[*id]]" />
	  <div class="form-group">
		<label class="col-sm-2 control-label">[[%ms2_product_article]]:</label>
		<div class="col-sm-3">
		  <label class="checkbox">
			[[+article]]
		  </label>
		</div>
	  </div>
	  <div class="form-group">
		<label class="col-sm-2 control-label">[[%ms2_product_price]]:</label>
		<div class="col-sm-3">
		  <label class="checkbox"><span class="all_price">
			[[!+price]] [[%ms2_frontend_currency]]</span>
			[[!+old_price:gt=`0`:then=`<span class="old_price">[[+old_price]] [[%ms2_frontend_currency]]</span>`:else=``]]
		  </label>
		</div>
	  </div>
	  <div class="form-group form-inline">
		<label class="col-sm-2 control-label" for="product_price">[[%ms2_cart_count]]:</label>
		<div class="col-sm-3">
		  <input type="number" name="count" id="product_price" class="input-sm form-control" value="1" />
		  [[%ms2_frontend_count_unit]]
		</div>
	  </div>

	  [[!msOptions?name=`color`]]
	  [[!msOptions?name=`size`]]
	  [[-!msOptions?name=`tags`&tplRow=``&tplOuter=``]]
	  
	  <div class="form-group">
		<label class="col-sm-2 control-label">Производитель:</label>
		<div class="col-sm-3">
		  <label class="checkbox">[[*Vendor]]</label>
		</div>
	  </div>
	  
	  <div class="form-group">
		<label class="col-sm-2 control-label">Цвет:</label>
		<div class="col-sm-3">
		  <label class="checkbox">[[*Color]]</label>
		</div>
	  </div>

	  <div class="form-group">
		<label class="col-sm-2 control-label">Размеры:</label>
		<div class="col-sm-3">
		  <label class="checkbox">[[*Size]]</label>
		</div>
	  </div>
	  
	  <div class="form-group">
		<div class="col-sm-3">
		  <button type="submit" class="btn btn-default" name="ms2_action" value="cart/add"><i class="icon icon-shopping-bag"></i> [[%ms2_frontend_add_to_cart]]</button>
		</div>
	  </div>
	</form>
	
  </div>
</div><div class="pr_info">
[[*content]]</div>