Exclude a child.

item.html

<li class="selected">
  <div class="item-desc">
    <h2>Basic Party Pack</h2>
    <p><span>$32 </span>for 2 guests</p>
    <p class="per">$15.79 per guest</p>
    <a title="View Details" href="#/abc1" class="selected">View Details</a>
  </div>
  <div class="add">
    <form>
      <label for="qty">Qty: <input type="text" id="qty_q0" class="qty"></label>
      <input type="image" alt="Select Item" src="img/btn-select-item.png" class="action-button">
    </form>
  </div>
</li>

item.js

$('li').on(self.options.activateEvent, function(e) {
    e.preventDefault();
    
    // Exclude clicks on el's in the add div?
    if (!$(e.target).parents('.add').length) {
        self._vars.currentSlide = i;
        self._activateSlide(i);
        self._cycleStop();
    }
});