Index: lib/weblib.php
===================================================================
RCS file: /cvsroot/moodle/moodle/lib/weblib.php,v
retrieving revision 1.924
diff -u -r1.924 weblib.php
--- lib/weblib.php	10 Aug 2007 10:37:30 -0000	1.924
+++ lib/weblib.php	10 Aug 2007 14:33:08 -0000
@@ -3008,14 +3008,20 @@
     $CFG->footer = $CFG->themedir .'/'. $theme .'/footer.html';
 
 /// Define stylesheet loading order
-    $CFG->stylesheets = array();
-    if ($theme != 'standard') {    /// The standard sheet is always loaded first
-        $CFG->stylesheets[] = $CFG->themewww.'/standard/styles.php'.$paramstring;
+    if (empty($USER->screenreader) || $USER->screenreader==0) {
+        $CFG->stylesheets = array();
+        if ($theme != 'standard') {    /// The standard sheet is always loaded first
+            $CFG->stylesheets[] = $CFG->themewww.'/standard/styles.php'.$paramstring;
+        }
+        if (!empty($THEME->parent)) {  /// Parent stylesheets are loaded next
+            $CFG->stylesheets[] = $CFG->themewww.'/'.$THEME->parent.'/styles.php'.$paramstring;
+        }
+        $CFG->stylesheets[] = $CFG->themewww.'/'.$theme.'/styles.php'.$paramstring;
+    } else {
+        /// Only a single minimal stylesheet for screenreader users
+        $CFG->stylesheets = array($CFG->themewww.'/standard/styles_screenreader.css');
+        $THEME->standardmetainclude = false;
     }
-    if (!empty($THEME->parent)) {  /// Parent stylesheets are loaded next
-        $CFG->stylesheets[] = $CFG->themewww.'/'.$THEME->parent.'/styles.php'.$paramstring;
-    }
-    $CFG->stylesheets[] = $CFG->themewww.'/'.$theme.'/styles.php'.$paramstring;
 
 /// We have to change some URLs in styles if we are in a $HTTPSPAGEREQUIRED page
     if (!empty($HTTPSPAGEREQUIRED)) {