Magento: add proceed to checkout button to message

--- ./app/code/core/Mage/Checkout/controllers/CartController.php.org	2011-02-01 15:31:03.000000000 +0100
+++ ./app/code/core/Mage/Checkout/controllers/CartController.php	2011-02-01 16:32:48.000000000 +0100
@@ -185,6 +185,13 @@
                 array('product' => $product, 'request' => $this->getRequest(), 'response' => $this->getResponse())
             );
             $message = $this->__('%s was successfully added to your shopping cart.', Mage::helper('core')->htmlEscape($product->getName()));
+            $message .= '
'; + $message .= ' getCheckoutUrl() . '\'" class="button" type="button">'; + $message .= ' '; + $message .= ' ' . $this->__('Proceed to Checkout') . ''; + $message .= ' '; + $message .= ' '; + $message .= '
'; if (!$this->_getSession()->getNoCartRedirect(true)) { $this->_getSession()->addSuccess($message); $this->_goBack(); 1

Optional: fix CSS
add to ./skin/frontend/default/default/css/styles.css
.proceed-to-checkout {
padding-top:8px;
}