diff --git a/plugins/shopping_cart/public/cart.js b/plugins/shopping_cart/public/cart.js
new file mode 100644
index 0000000..d24c79c
--- /dev/null
+++ b/plugins/shopping_cart/public/cart.js
@@ -0,0 +1,246 @@
+function Cart(config) {
+  var $ = jQuery;
+  Cart.instance = this; // this may be a list on the future;
+  this.cartElem = $("#cart1")[0];
+  this.cartElem.cartObj = this;
+  this.contentBox = $("#cart1 .cart-content");
+  this.itemsBox = $("#cart1 .cart-items");
+  this.items = {};
+  this.visible = false;
+  if (config.hasProducts) {
+    $(this.cartElem).show();
+    this.enterprise = config.enterprise;
+    this.listProducts();
+  }
+  $(".cart-buy", this.cartElem).button({ icons: { primary: 'ui-icon-cart'} });
+}
+
+(function($){
+
+  Cart.prototype.listProducts = function() {
+    var me = this;
+    $.ajax({
+      url: '/profile/'+ this.enterprise +'/plugins/shopping_cart/list',
+      dataType: 'json',
+      success: function(data, ststus, ajax){
+        if ( !data.ok ) alert(data.error.message);
+        else me.addToList(data, true);
+      },
+      cache: false,
+      error: function(ajax, status, errorThrown) {
+        alert('List cart items - HTTP '+status+': '+errorThrown);
+      }
+    });
+  }
+
+  Cart.prototype.addToList = function(data, clear) {
+    if( clear ) this.itemsBox.empty();
+    var me = this;
+    for( var item,i=0; item=data.products[i]; i++ ) {
+      this.items[item.id] = { price:item.price, quantity:item.quantity };
+      this.updateTotal();
+      var liId = "cart-item-"+item.id;
+      var li = $("#"+liId);
+      if( !li[0] ) li = $('<li id="'+liId+'"></li>\n').appendTo(this.itemsBox);
+      li.empty();
+      $('<div class="picture" style="background-image:url('+item.picture+')"></div>' +
+        '<span class="item-name">'+ item.name +'</span>' +
+        '<div class="item-price">' +
+        '<input size="1" value="'+item.quantity+'" />'+ (item.price ? '&times; '+ item.price : '') +'</div>' +
+        ' <a href="remove:'+item.name+'" onclick="Cart.removeItem(\''+this.enterprise+'\', '+item.id+'); return false"' +
+        ' class="button icon-delete"><span>remove</span></a>'
+       ).appendTo(li);
+      var input = $("input", li)[0];
+      input.lastValue = input.value;
+      input.itemId = item.id;
+      input.ajustSize = function() {
+        var len = this.value.toString().length;
+        if(len > 2) len--;
+        this.style.width = len+"em";
+      };
+      input.ajustSize();
+      input.onchange = function() {
+        me.updateQuantity(this, this.itemId, this.value);
+      };
+      document.location.href = "#"+liId;
+      document.location.href = "#"+this.cartElem.id;
+      history.go(-2);
+      var liBg = li.css("background-color");
+      li[0].style.backgroundColor = "#FF0";
+      li.animate({ backgroundColor: liBg }, 1000);
+    }
+    if( !this.visible ) {
+      this.contentBox.hide();
+      this.show();
+    }
+  }
+
+  Cart.prototype.updateQuantity = function(input, itemId, quantity) {
+    quantity = parseInt(quantity);
+    input.disabled = true;
+    var originalBg = input.style.backgroundImage;
+    input.style.backgroundImage = "url(/images/loading-small.gif)";
+    var me = this;
+    if( quantity == NaN ) return input.value = input.lastValue;
+    $.ajax({
+      url: '/profile/'+ this.enterprise +'/plugins/shopping_cart/update_quantity/'+ itemId +'?quantity='+ quantity,
+      dataType: 'json',
+      success: function(data, status, ajax){
+        if ( !data.ok ) {
+          alert(data.error.message);
+          input.value = input.lastValue;
+        }
+        else {
+          input.lastValue = quantity;
+          me.items[itemId].quantity = quantity;
+          me.updateTotal();
+        }
+      },
+      cache: false,
+      error: function(ajax, status, errorThrown) {
+        alert('Add item - HTTP '+status+': '+errorThrown);
+        input.value = input.lastValue;
+      },
+      complete: function(){
+        input.disabled = false;
+        input.style.backgroundImage = originalBg;
+        input.ajustSize();
+      }
+    });
+  }
+
+  Cart.prototype.removeFromList = function(itemId) {
+    $("#cart-item-"+itemId).slideUp(500, function() {$(this).remove()});
+    delete this.items[itemId];
+    this.updateTotal();
+  }
+
+  Cart.addItem = function(enterprise, itemId, link) {
+    // on the future, the instance may be found by the enterprise identifier.
+    link.intervalId = setInterval(function() {
+      steps = ['w', 'n', 'e', 's'];
+      if( !link.step || link.step==3 ) link.step = 0;
+      link.step++;
+      $(link).button({ icons: { primary: 'ui-icon-arrowrefresh-1-'+steps[link.step]}, disable: true })
+    }, 100);
+    var stopBtLoading = function() {
+      clearInterval(link.intervalId);
+      $(link).button({ icons: { primary: 'ui-icon-cart'}, disable: false });
+    };
+    this.instance.addItem(enterprise, itemId, stopBtLoading);
+  }
+
+  Cart.prototype.addItem = function(enterprise, itemId, callback) {
+    if(!this.enterprise) {
+      this.enterprise = enterprise;
+      if( !this.visible ) $(this.cartElem).show();
+    }
+    var me = this;
+    $.ajax({
+      url: '/profile/'+ enterprise +'/plugins/shopping_cart/add/'+ itemId,
+      dataType: 'json',
+      success: function(data, status, ajax){
+        if ( !data.ok ) alert(data.error.message);
+        else me.addToList(data);
+      },
+      cache: false,
+      error: function(ajax, status, errorThrown) {
+        alert('Add item - HTTP '+status+': '+errorThrown);
+      },
+      complete: callback
+    });
+  }
+
+  Cart.removeItem = function(enterprise, itemId) {
+    var message = this.instance.cartElem.getAttribute('data-l10nRemoveItem');
+    if( confirm(message) ) this.instance.removeItem(enterprise, itemId);
+  }
+
+  Cart.prototype.removeItem = function(enterprise, itemId) {
+    if ($("li", this.itemsBox).size() < 2) return this.clean();
+    var me = this;
+    $.ajax({
+      url: '/profile/'+ enterprise +'/plugins/shopping_cart/remove/'+ itemId,
+      dataType: 'json',
+      success: function(data, status, ajax){
+        if ( !data.ok ) alert(data.error.message);
+        else me.removeFromList(data.product_id);
+      },
+      cache: false,
+      error: function(ajax, status, errorThrown) {
+        alert('Remove item - HTTP '+status+': '+errorThrown);
+      }
+    });
+  }
+
+  Cart.toggle = function(link) {
+    link.parentNode.parentNode.cartObj.toggle();
+  }
+  Cart.prototype.toggle = function() {
+    this.visible ? this.hide() : this.show();
+  }
+
+  Cart.prototype.show = function() {
+    this.visible = true;
+    this.contentBox.slideDown(500);
+    $(".cart-toggle .str-show", this.cartElem).hide();
+    $(".cart-toggle .str-hide", this.cartElem).show();
+
+  }
+  Cart.prototype.hide = function() {
+    this.visible = false;
+    this.contentBox.slideUp(500);
+    $(".cart-toggle .str-show", this.cartElem).show();
+    $(".cart-toggle .str-hide", this.cartElem).hide();
+  }
+
+  Cart.prototype.updateTotal = function() {
+    var total = 0;
+    var currency, sep = "";
+    for( var itemId in this.items ) {
+      var item = this.items[itemId];
+      if( item.price ) {
+        currency = item.price.replace(/^([^0-9]+).*$/, "$1");
+        sep = item.price.charAt(item.price.length-3);
+        var price = item.price.replace(/[^0-9]/g,"");
+        total += item.quantity * parseFloat(price);
+      }
+    }
+    total = Math.round(total).toString().replace(/(..)$/, sep+"$1")
+    $(".cart-total b", this.cartElem).text( ( (total!=0) ? currency+" "+total : "---" ) );
+  }
+
+  Cart.clean = function(link) {
+    var message = this.instance.cartElem.getAttribute('data-l10nCleanCart');
+    if( confirm(message) ) link.parentNode.parentNode.parentNode.cartObj.clean();
+  }
+
+  Cart.prototype.clean = function() {
+    var me = this;
+    $.ajax({
+      url: '/profile/'+ me.enterprise +'/plugins/shopping_cart/clean',
+      dataType: 'json',
+      success: function(data, status, ajax){
+        if ( !data.ok ) alert(data.error.message);
+        else{
+          me.items = {};
+          $(me.cartElem).slideUp(500, function() {
+            $(me.itemsBox).empty();
+            me.hide();
+            me.enterprise = null;
+            me.updateTotal();
+          });
+        }
+      },
+      cache: false,
+      error: function(ajax, status, errorThrown) {
+        alert('Remove item - HTTP '+status+': '+errorThrown);
+      }
+    });
+  }
+
+  $(function(){
+    $('.cart-add-item').button({ icons: { primary: 'ui-icon-cart'} })
+  });
+
+})(jQuery);
diff --git a/plugins/shopping_cart/public/style.css b/plugins/shopping_cart/public/style.css
new file mode 100644
index 0000000..d9e3b32
--- /dev/null
+++ b/plugins/shopping_cart/public/style.css
@@ -0,0 +1,106 @@
+.cart-add-item {
+  position: absolute;
+  right: 5px;
+  top: 5px;
+}
+
+.cart {
+  position: absolute;
+  right: 20px;
+  top: 0px;
+  width: 200px;
+  z-index: 1000;
+  border: 1px solid #777;
+  border-top: none;
+  background: rgba(200,200,200,0.6);
+}
+
+.cart h3 {
+  color: #888;
+  margin: 0px 0px 0px 5px;
+}
+
+.cart-clean {
+  color: #AAA;
+  position: absolute;
+  top: 1px;
+  right: 5px;
+  text-decoration: none;
+}
+.cart-clean:hover {
+  color: #888;
+}
+
+.cart-content {
+  display: none;
+}
+
+.cart-items {
+  margin: 0px;
+  padding: 0px;
+  max-height: 328px;
+  overflow: auto;
+}
+
+.cart-items li {
+  height: 50px;
+  padding: 5px;
+  margin: 3px;
+  border: 1px solid #999;
+  list-style: none;
+  background: #FFF;
+  position: relative;
+}
+
+.cart-items .picture {
+  float: left;
+  width: 50px;
+  height: 50px;
+  margin-right: 10px;
+  background-repeat: no-repeat;
+  background-position: 50% 50%;
+}
+
+.cart .item-name {
+  margin-right: 20px;
+}
+
+.cart .button {
+  position: absolute;
+  top: 2px;
+  right: 2px;
+}
+
+.cart input {
+  border: 1px solid transparent;
+  background: transparent 50% 50% no-repeat;
+  text-align: center;
+  padding: 0px;
+  font-family: monospace;
+  width: 2em;
+}
+.cart:hover input, .cart input:focus {
+  border: 1px solid #CCC;
+}
+
+.cart-buy {
+  display: block;
+  margin: 2px 4px;
+}
+
+.cart-total {
+  position: absolute;
+  left: 5px;
+  bottom: 0px;
+}
+
+.cart-toggle {
+  display: block;
+  color: #AAA;
+  text-decoration: none;
+  float: right;
+  padding: 0px 5px;
+}
+.cart-toggle:hover {
+  color: #555;
+}
diff --git a/plugins/shopping_cart/views/cart.html.erb b/plugins/shopping_cart/views/cart.html.erb
new file mode 100644
index 0000000..a351768
--- /dev/null
+++ b/plugins/shopping_cart/views/cart.html.erb
@@ -0,0 +1,21 @@
+<div id="cart1" class="cart" style="display:none"
+  data-l10nRemoveItem="<%=_('Are you sure you want to remove this item?')%>"
+  data-l10nCleanCart="<%=_('Are you sure you want to clean your cart?')%>">
+  <div class="cart-inner">
+    <div class="cart-content">
+      <h3><%= _("Cart") %></h3>
+      <a href="cart:clean" onclick="Cart.clean(this); return false" class="cart-clean"><%=_('Clean cart')%></a>
+      <ul class="cart-items"></ul>
+      <div class="cart-total"><%=_('Total:')%> <b></b></div>
+      <a href="cart:buy" class="cart-buy" onclick="alert('foi mô pai!'); return false"><%=_('Shopping checkout')%></a>
+    </div>
+    <a href="#" onclick="Cart.toggle(this); return false" class="cart-toggle">
+      <span class="str-show"><%=_('Show cart')%></span>
+      <span class="str-hide" style="display:none"><%=_('Hide cart')%></span>
+    </a>
+  </div>
+</div>
+
+<script type="text/javascript">
+  new Cart({hasProducts:<%= !locals[:cart].nil? ? "true, enterprise:'#{Enterprise.find(locals[:cart][:enterprise_id]).identifier}'" : "false" %>});
+</script>
--
libgit2 0.21.2