Index: typo3/sysext/cms/tslib/class.tslib_fe.php
===================================================================
--- typo3/sysext/cms/tslib/class.tslib_fe.php	(Revision 10012)
+++ typo3/sysext/cms/tslib/class.tslib_fe.php	(Arbeitskopie)
@@ -482,7 +482,7 @@
 
 	/**
 	 * Connect to SQL database
-	 * May exit after outputting an error message or some JavaScript redirecting to the install tool.
+	 * May exit after outputting an error message or redirect to the Install Tool
 	 *
 	 * @return	void
 	 */
@@ -498,13 +498,8 @@
 		}
 		if ($link !== FALSE) {
 			if (!TYPO3_db)	{
-				throw new RuntimeException('Database Error: No database selected');
 					// Redirects to the Install Tool:
-				echo '<script type="text/javascript">
-						/*<![CDATA[*/
-					window.location.href = "'.TYPO3_mainDir.'install/index.php?mode=123&step=1&password=joh316";
-						/*]]>*/
-					</script>';
+				header('Location: ' . t3lib_div::locationHeaderUrl(TYPO3_mainDir . 'install/index.php?mode=123&step=1&password=joh316'));
 				exit;
 			} elseif (!$GLOBALS['TYPO3_DB']->sql_select_db(TYPO3_db))	{
 				if ($this->checkPageUnavailableHandler())	{