More moodling on the course categories, improving performance for

large categories and making it easier to move large numbers of
courses around.

Also cleaned up some of the navigation bars

course/edit.php

@@ -5,6 +5,7 @@
 	require_once("lib.php");
 
     optional_variable($id, 0);   // course id
+    optional_variable($category, 0);   // category id
 
     require_login();
 
@@ -116,7 +117,7 @@
             $form->numsections = 10;
             $form->newsitems = 5;
             $form->showrecent = 1;
-            $form->category = 0;
+            $form->category = $category;
             $form->id = "";
             $form->visible = 1;
         }
@@ -137,15 +138,16 @@
     $streditcoursesettings = get_string("editcoursesettings");
     $straddnewcourse = get_string("addnewcourse");
     $stradministration = get_string("administration");
+    $strcategories = get_string("categories");
 
     if (!empty($course)) {
 	    print_header($streditcoursesettings, "$course->fullname", 
-                     "<A HREF=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</A> 
+                     "<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a> 
                       -> $streditcoursesettings", $focus);
     } else {
         print_header("$site->shortname: $straddnewcourse", "$site->fullname",
-                     "<A HREF=\"../$CFG->admin/index.php\">$stradministration</A> 
-                      -> $straddnewcourse", $focus);
+                     "<a href=\"../$CFG->admin/index.php\">$stradministration</a> -> ".
+                     "<a href=\"index.php\">$strcategories</a> -> $straddnewcourse", $focus);
     }
 
     print_heading($streditcoursesettings);