diff --git a/app/code/core/Mage/Core/Block/Abstract.php b/app/code/core/Mage/Core/Block/Abstract.php
index 0bb77cb12d47c..2ac7f544175ae 100644
--- a/app/code/core/Mage/Core/Block/Abstract.php
+++ b/app/code/core/Mage/Core/Block/Abstract.php
@@ -95,6 +95,19 @@ abstract class Mage_Core_Block_Abstract extends Varien_Object
      */
     protected $_eventManager;
 
+
+    /**
+     * The prefix for the customized block events
+     * @var string
+     */
+    protected $_eventPrefix;
+
+    /**
+     * The object for the customized block events
+     * @var string
+     */
+    protected $_eventObject;
+
     /**
      * Class constructor
      *
@@ -614,6 +627,10 @@ public function setFrameTags($openTag, $closeTag = null)
     final public function toHtml()
     {
         Mage::dispatchEvent('core_block_abstract_to_html_before', array('block' => $this));
+        if ($this->_eventPrefix && $this->_eventObject) {
+            Mage::dispatchEvent($this->_eventPrefix . '_to_html_before', array($this->_eventObject => $this));
+        }
+        
         if (Mage::getStoreConfig('advanced/modules_disable_output/' . $this->getModuleName())) {
             return '';
         }
diff --git a/app/code/core/Mage/Core/Controller/Varien/Action.php b/app/code/core/Mage/Core/Controller/Varien/Action.php
index 2d683c489a083..226b0e010ca08 100755
--- a/app/code/core/Mage/Core/Controller/Varien/Action.php
+++ b/app/code/core/Mage/Core/Controller/Varien/Action.php
@@ -38,6 +38,7 @@ abstract class Mage_Core_Controller_Varien_Action implements Mage_Core_Controlle
 {
     const FLAG_NO_CHECK_INSTALLATION    = 'no-install-check';
     const FLAG_NO_DISPATCH              = 'no-dispatch';
+    const FLAG_NO_DISPATCH_ACTION       = 'no-dispatch-action';
     const FLAG_NO_PRE_DISPATCH          = 'no-preDispatch';
     const FLAG_NO_POST_DISPATCH         = 'no-postDispatch';
     const FLAG_NO_START_SESSION         = 'no-startSession';
@@ -469,7 +470,11 @@ public function dispatch($action)
                  */
                 if (!$this->getFlag('', self::FLAG_NO_DISPATCH)) {
                     Magento_Profiler::start('action_body');
-                    $this->$actionMethodName();
+
+                    if (!$this->getFlag('', self::FLAG_NO_DISPATCH_ACTION)) {
+                        $this->$actionMethodName();
+                    }
+                    
                     Magento_Profiler::stop('action_body');
 
                     Magento_Profiler::start('postdispatch');
diff --git a/app/code/core/Mage/Tax/Model/Calculation.php b/app/code/core/Mage/Tax/Model/Calculation.php
index bdc78ae5000fb..b0197122606c9 100644
--- a/app/code/core/Mage/Tax/Model/Calculation.php
+++ b/app/code/core/Mage/Tax/Model/Calculation.php
@@ -188,7 +188,7 @@ public function getRate($request)
             $this->unsRateValue();
             $this->unsCalculationProcess();
             $this->unsEventModuleId();
-            Mage::dispatchEvent('tax_rate_data_fetch', array('request'=>$request));
+            Mage::dispatchEvent('tax_rate_data_fetch', array('request'=>$request, 'sender'=>$this));
             if (!$this->hasRateValue()) {
                 $rateInfo = $this->_getResource()->getRateInfo($request);
                 $this->setCalculationProcess($rateInfo['process']);