Add Liquid samples.

samples/Liquid/template.liquid

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+<h3>We have wonderful products!</h3>
+<ul id="products">
+  <div id="productpage">
+    <div id="productimages"><div id="productimages-top"><div id="productimages-bottom">
+      {% for image in product.images %}
+        {% if forloop.first %}
+          <a href="{{ image | product_img_url: 'large' }}" class="productimage" rel="lightbox">
+            <img src="{{ image | product_img_url: 'medium'}}" alt="{{product.title | escape }}" />
+          </a>
+        {% else %}
+          <a href="{{ image | product_img_url: 'large' }}" class="productimage-small" rel="lightbox">
+            <img src="{{ image | product_img_url: 'small'}}" alt="{{product.title | escape }}" />
+          </a>
+        {% endif %}
+      {% endfor %}
+    </div></div></div>
+
+    <h2>{{ product.title }}</h2>
+
+    <ul id="details" class="hlist">
+      <li>Vendor: {{ product.vendor | link_to_vendor }}</li>
+      <li>Type: {{ product.type | link_to_type }}</li>
+    </ul>
+
+    <small>{{ product.price_min | money }}{% if product.price_varies %} - {{ product.price_max | money }}{% endif %}</small>
+
+    <div id="variant-add">
+      <form action="/cart/add" method="post">
+
+        <select id="variant-select" name="id" class="product-info-options">
+          {% for variant in product.variants %}
+            <option value="{{ variant.id }}">{{ variant.title }} - {{ variant.price | money }}</option>
+          {% endfor %}
+        </select>
+
+        <div id="price-field" class="price"></div>
+
+      <div style="text-align:center;"><input type="image" name="add" value="Add to Cart" id="add" src="{{ 'addtocart.gif' | asset_url }}" /></div>
+      </form>
+    </div>
+
+    <div class="description textile">
+      {{ product.description }}
+    </div>
+  </div>
+
+  <script type="text/javascript">
+  <!--
+    // prototype callback for multi variants dropdown selector
+    var selectCallback = function(variant, selector) {
+      if (variant && variant.available == true) {
+        // selected a valid variant
+        $('add').removeClassName('disabled'); // remove unavailable class from add-to-cart button
+        $('add').disabled = false;           // reenable add-to-cart button
+        $('price-field').innerHTML = Shopify.formatMoney(variant.price, "{{shop.money_with_currency_format}}");  // update price field
+      } else {
+        // variant doesn't exist
+        $('add').addClassName('disabled');      // set add-to-cart button to unavailable class
+        $('add').disabled = true;              // disable add-to-cart button
+        $('price-field').innerHTML = (variant) ? "Sold Out" : "Unavailable"; // update price-field message
+      }
+    };
+
+    // initialize multi selector for product
+    Event.observe(document, 'dom:loaded', function() {
+      new Shopify.OptionSelectors("variant-select", { product: {{ product | json }}, onVariantSelected: selectCallback });
+    });
+  -->
+  </script>
+</ul>