Docs: Speed improvements, don't show course quota to students.

main/document/document.php

@@ -2158,18 +2158,24 @@ echo $dirForm;
 echo $selector;
 
 $table->display();
-$ajaxURL = api_get_path(WEB_AJAX_PATH).'document.ajax.php?a=get_document_quota&'.api_get_cidreq();
 
 if (count($documentAndFolders) > 1) {
-    echo '<script>
-    $(function() {
-        $.ajax({
-            url:"'.$ajaxURL.'",
-            success:function(data){
-                $("#course_quota").html(data);
-            }
+    $ajaxURL = api_get_path(WEB_AJAX_PATH).'document.ajax.php?a=get_document_quota&'.api_get_cidreq();
+    if ($isAllowedToEdit) {
+        echo '<script>
+        $(function() {        
+            $.ajax({
+                url:"'.$ajaxURL.'",
+                success:function(data){
+                    $("#course_quota").html(data);
+                }
+            });
         });
-        
+        </script>';
+    }
+
+    echo '<script>
+    $(function() {        
         $(".document_size").each(function(i, obj) {
             var path = obj.getAttribute("data-path");
                             
@@ -2182,6 +2188,7 @@ if (count($documentAndFolders) > 1) {
         });    
     });
     </script>';
+
     echo '<span id="course_quota"></span>';
 }