diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php
index 8be65e0..74aed86 100644
--- a/system/database/DB_forge.php
+++ b/system/database/DB_forge.php
@@ -24,9 +24,9 @@
  */
 class CI_DB_forge {
 
-	var $fields		 	= array();
+	var $fields			= array();
 	var $keys			= array();
-	var $primary_keys 	= array();
+	var $primary_keys	= array();
 	var $db_char_set	=	'';
 
 	/**
@@ -34,7 +34,7 @@
 	 *
 	 * Grabs the CI super object instance so we can access it.
 	 *
-	 */	
+	 */
 	function CI_DB_forge()
 	{
 		// Assign the main database object to $this->db
@@ -55,12 +55,12 @@
 	function create_database($db_name)
 	{
 		$sql = $this->_create_database($db_name);
-		
+
 		if (is_bool($sql))
 		{
 			return $sql;
 		}
-	
+
 		return $this->db->query($sql);
 	}
 
@@ -76,12 +76,12 @@
 	function drop_database($db_name)
 	{
 		$sql = $this->_drop_database($db_name);
-		
+
 		if (is_bool($sql))
 		{
 			return $sql;
 		}
-	
+
 		return $this->db->query($sql);
 	}
 
@@ -103,15 +103,15 @@
 			{
 				$this->add_key($one, $primary);
 			}
-			
+
 			return;
 		}
-	
+
 		if ($key == '')
 		{
 			show_error('Key information is required for that operation.');
 		}
-		
+
 		if ($primary === TRUE)
 		{
 			$this->primary_keys[] = $key;
@@ -137,7 +137,7 @@
 		{
 			show_error('Field information is required.');
 		}
-		
+
 		if (is_string($field))
 		{
 			if ($field == 'id')
@@ -157,16 +157,16 @@
 				{
 					show_error('Field information is required for that operation.');
 				}
-				
+
 				$this->fields[] = $field;
 			}
 		}
-		
+
 		if (is_array($field))
 		{
 			$this->fields = array_merge($this->fields, $field);
 		}
-		
+
 	}
 
 	// --------------------------------------------------------------------
@@ -179,19 +179,19 @@
 	 * @return	bool
 	 */
 	function create_table($table = '', $if_not_exists = FALSE)
-	{	
+	{
 		if ($table == '')
 		{
 			show_error('A table name is required for that operation.');
 		}
-			
+
 		if (count($this->fields) == 0)
-		{	
+		{
 			show_error('Field information is required.');
 		}
 
 		$sql = $this->_create_table($this->db->dbprefix.$table, $this->fields, $this->primary_keys, $this->keys, $if_not_exists);
-		
+
 		$this->_reset();
 		return $this->db->query($sql);
 	}
@@ -208,12 +208,12 @@
 	function drop_table($table_name)
 	{
 		$sql = $this->_drop_table($this->db->dbprefix.$table_name);
-		
+
 		if (is_bool($sql))
 		{
 			return $sql;
 		}
-	
+
 		return $this->db->query($sql);
 	}
 
@@ -233,7 +233,7 @@
 		{
 			show_error('A table name is required for that operation.');
 		}
-			
+
 		$sql = $this->_rename_table($table_name, $new_table_name);
 		return $this->db->query($sql);
 	}
@@ -259,25 +259,25 @@
 		// add field info into field array, but we can only do one at a time
 		// so we cycle through
 
-       foreach ($field as $k => $v)
-       {
-			$this->add_field(array($k => $field[$k]));		
+		foreach ($field as $k => $v)
+		{
+			$this->add_field(array($k => $field[$k]));
 
 			if (count($this->fields) == 0)
-			{	
+			{
 				show_error('Field information is required.');
 			}
-			
+
 			$sql = $this->_alter_table('ADD', $this->db->dbprefix.$table, $this->fields, $after_field);
 
 			$this->_reset();
-	
+
 			if ($this->db->query($sql) === FALSE)
 			{
 				return FALSE;
 			}
 		}
-		
+
 		return TRUE;
 
 	}
@@ -294,7 +294,7 @@
 	 */
 	function drop_column($table = '', $column_name = '')
 	{
-	
+
 		if ($table == '')
 		{
 			show_error('A table name is required for that operation.');
@@ -306,7 +306,7 @@
 		}
 
 		$sql = $this->_alter_table('DROP', $this->db->dbprefix.$table, $column_name);
-	
+
 		return $this->db->query($sql);
 	}
 
@@ -336,20 +336,20 @@
 			$this->add_field(array($k => $field[$k]));
 
 			if (count($this->fields) == 0)
-			{	
+			{
 				show_error('Field information is required.');
 			}
-		
+
 			$sql = $this->_alter_table('CHANGE', $this->db->dbprefix.$table, $this->fields);
 
 			$this->_reset();
-	
+
 			if ($this->db->query($sql) === FALSE)
 			{
 				return FALSE;
 			}
 		}
-		
+
 		return TRUE;
 	}
 
@@ -365,9 +365,9 @@
 	 */
 	function _reset()
 	{
-		$this->fields 		= array();
+		$this->fields		= array();
 		$this->keys			= array();
-		$this->primary_keys 	= array();
+		$this->primary_keys	= array();
 	}
 
 }