Extract js/ui_util.js.

static/js/ui_util.js

@@ -0,0 +1,32 @@
+var ui_util = (function () {
+
+var exports = {};
+
+// Add functions to this that have no non-trivial
+// dependencies other than jQuery.
+
+exports.change_tab_to = function (tabname) {
+    $('#gear-menu a[href="' + tabname + '"]').tab('show');
+};
+
+exports.focus_on = function (field_id) {
+    // Call after autocompleting on a field, to advance the focus to
+    // the next input field.
+
+    // Bootstrap's typeahead does not expose a callback for when an
+    // autocomplete selection has been made, so we have to do this
+    // manually.
+    $("#" + field_id).focus();
+};
+
+exports.blur_active_element = function () {
+    // this blurs anything that may perhaps be actively focused on.
+    document.activeElement.blur();
+};
+
+return exports;
+}());
+
+if (typeof module !== 'undefined') {
+    module.exports = ui_util;
+}