Index: application.php
===================================================================
--- application.php	(revision 14237)
+++ application.php	(working copy)
@@ -2387,6 +2387,16 @@
 		return false;
 	}
 
+	function SetConfigValue($name, $value)
+	{
+		$this->ConfigHash[$name] = $value;
+
+		$fields_hash = Array ('VariableValue' => $value);
+		$this->Conn->doUpdate($fields_hash, TABLE_PREFIX . 'ConfigurationValues', 'VariableName = ' . $this->Conn->qstr($name));
+
+		$this->UnitConfigReader->ResetParsedData();
+	}
+
 	function UpdateConfigCache()
 	{
 		if ($this->ConfigCacheIds) {