fix prototype 1.7 issues with google recaptcha

app/code/community/ProxiBlue/ReCaptcha/Model/Observer.php

@@ -9,6 +9,31 @@
  */
 class ProxiBlue_ReCaptcha_Model_Observer
 {
+    /**
+     * Fix Incompatibility Google Recaptcha With Prototype 1.7
+     */
+    public function fixPrototypeVersion() {
+        // Prototype update only in OpenMage from version 19.4.12
+        if(method_exists('Mage', 'getOpenMageVersion')) {
+            if (version_compare( Mage::getOpenMageVersion() , '19.4.12', '>=')){
+                return $this;
+            }
+        }
+
+        $head = Mage::app()->getLayout()->getBlock('head');
+        if (!$head) {
+            return $this;
+        }
+        $headItems = $head->getData('items');
+        if ( isset($headItems['js/prototype/prototype.js']) ) {
+            $headItems['js/prototype/prototype.js']['name'] = 'proxiblue' . DS . 'recaptcha' . DS . 'prototype.js';
+            $head->setData('items', $headItems);
+        }
+
+        return $this;
+
+    }
+
     /**
      * Check Captcha On Contact Us
      *

app/code/community/ProxiBlue/ReCaptcha/etc/config.xml

@@ -2,7 +2,7 @@
 <config>
     <modules>
         <ProxiBlue_ReCaptcha>
-            <version>2.5.0</version>
+            <version>2.5.1</version>
             <depends>
                 <Mage_Captcha/>
             </depends>
@@ -94,6 +94,16 @@
         </translate>
     </adminhtml>
     <frontend>
+        <events>
+            <controller_action_layout_render_before>
+                <observers>
+                    <fixPrototypeVersion>
+                        <class>proxiblue_recaptcha/observer</class>
+                        <method>fixPrototypeVersion</method>
+                    </fixPrototypeVersion>
+                </observers>
+            </controller_action_layout_render_before>
+        </events>
         <layout>
             <updates>
                 <proxiblue_recaptcha>