added config process method checking for delimiter values, updated changelog and user guide.
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index 0a6a2af..93ec8b3 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -55,6 +55,9 @@
 	{
 		$this->CI =& get_instance();
 
+		// applies delimiters set in config file.
+		$this->_config_delimiters();
+		
 		// Validation rules can be stored in a config file.
 		$this->_config_rules = $rules;
 
@@ -69,6 +72,27 @@
 
 		log_message('debug', "Form Validation Class Initialized");
 	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * if prefixes/suffixes set in config, assign and unset.
+	 * 
+	 * @return void
+	 */
+	private function _config_delimiters()
+	{
+		if (isset($rules['error_prefix']))
+		{
+			$this->_error_prefix = $rules['error_prefix']);
+			unset $rules['error_prefix']);
+		}
+		if (isset($rules['error_suffix']))
+		{
+			$this->_error_suffix = $rules['error_suffix']);
+			unset $rules['error_suffix']);
+		}
+	}
 
 	// --------------------------------------------------------------------