Version switcher construction in ajax to avoid setting html before version info…

doc/.static/version_switch.js

@@ -6,25 +6,17 @@
   var theano_dir = 'theano'; // directory containing theano doc
   // Default theano version: release and development.
   var versions_dir = {"release": "theano", "dev": "theano_versions/dev"};
-    // When doc is run from server
-    if (url.startsWith('http')) {
-        var root_url = url.substring(0, url.search('/' + theano_dir)) + '/';
-        // Get theano versions from dynamically generated version file on server.
-        $.getJSON(root_url + 'theano_versions/versions.json', function(data){
-            $.each(data, function(version, dir) {
-                    versions_dir[version] = dir
-            });
-        });
-    }
-    // When doc is run localy
-    else if (url.startsWith('file')) {
+
+  // If doc is run localy
+  if (url.startsWith('file')) {
     theano_dir = 'html';
-        var root_url = url.substring(0, url.search('/' + theano_dir)) + '/';
     versions_dir = {"local":"html"};
   }
   
+  var root_url = url.substring(0, url.search('/' + theano_dir)) + '/';
+
   // Regular expression to find theano version directory in URL.
-    var version_regex = new RegExp("\\/" + theano_dir + "(_versions\/)*([_a-zA-Z.0-9]*)\\/");
+  var version_regex = new RegExp("\\/" + theano_dir + "(_versions\\/)?([_a-zA-Z.0-9]*)\\/");
 
   // Get current version
   var current_version = url.match(version_regex)[0]
@@ -78,8 +70,20 @@
     // Get theano version.
     // var current_version = DOCUMENTATION_OPTIONS.VERSION;
 
-        var select = build_select();
-        $('.version_switcher_placeholder').html(select);
+    // Build default switcher
+    $('.version_switcher_placeholder').html(build_select());
+    $('.version_switcher_placeholder select').bind('change', on_switch)
+
+    // Check server for other doc versions and update switcher.
+    if (url.startsWith('http')) {
+      $.getJSON(root_url + 'theano_versions/versions.json', function(data){
+        $.each(data, function(version, dir) {
+            versions_dir[version] = dir;
+        });
+
+        $('.version_switcher_placeholder').html(build_select()); 
         $('.version_switcher_placeholder select').bind('change', on_switch)
       });
+    }    
+  });
 })();