Use Javascript strict mode

src/webui/www/private/scripts/client.js

@@ -22,6 +22,8 @@
  * THE SOFTWARE.
  */
 
+'use strict';
+
 torrentsTable = new TorrentsTable();
 torrentPeersTable = new TorrentPeersTable();
 searchResultsTable = new SearchResultsTable();

src/webui/www/private/scripts/contextmenu.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var lastShownContexMenu = null;
 var ContextMenu = new Class({
     //implements

src/webui/www/private/scripts/download.js

@@ -21,6 +21,8 @@
  * THE SOFTWARE.
  */
 
+'use strict';
+
 var categories = {};
 var defaultSavePath = "";
 

src/webui/www/private/scripts/dynamicTable.js

@@ -31,6 +31,8 @@
 
  **************************************************************/
 
+'use strict';
+
 var DynamicTableHeaderContextMenuClass = null;
 var ProgressColumnWidth = -1;
 

src/webui/www/private/scripts/misc.js

@@ -1,3 +1,5 @@
+'use strict';
+
 /*
  * JS counterpart of the function in src/misc.cpp
  */

src/webui/www/private/scripts/mocha-init.js

@@ -8,6 +8,8 @@
     it in the onContentLoaded function of the new window.
 
    ----------------------------------------------------------------- */
+'use strict';
+
 /* Define localStorage object for older browsers */
 if (typeof localStorage == 'undefined') {
     window['localStorage'] = {

src/webui/www/private/scripts/progressbar.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var ProgressBar = new Class({
     initialize: function(value, parameters) {
         var vals = {

src/webui/www/private/scripts/prop-files.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var is_seed = true;
 var current_hash = "";
 

src/webui/www/private/scripts/prop-general.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var clearData = function() {
     $('time_elapsed').set('html', '');
     $('eta').set('html', '');

src/webui/www/private/scripts/prop-trackers.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var trackersDynTable = new Class({
 
     initialize: function() {},

src/webui/www/private/scripts/prop-webseeds.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var webseedsDynTable = new Class({
 
     initialize: function() {},