Should include type to give valid html

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@856 44740490-163a-0410-bde0-09ae8108e29a

templates/default/logout-iframe.php

 <?php 
 
 	
-	$this->data['head'] .= '<script language="JavaScript">
+	$this->data['head'] .= '<script type="text/javascript" language="JavaScript">
 // use pre-formatted output for this multiplication table
 var j;	// loop variables
 
@@ -55,4 +55,4 @@ for (j=1; j<=10; j++) {
 		</div>
 	</div>
 
-<?php $this->includeAtTemplateBase('includes/footer.php'); ?>
\ No newline at end of file
+<?php $this->includeAtTemplateBase('includes/footer.php'); ?>