Fix to disable spinning icon when tasks is already running.

views/episodes.tpl

@@ -361,6 +361,7 @@
 	});
 
 	$('#search_missing_subtitles').on('click', function(){
+		$(this).addClass('disabled');
 		$(this).find('i:first').addClass('loading');
 	    $.ajax({
             url: '{{base_url}}search_missing_subtitles/{{no}}'

views/movie.tpl

@@ -315,6 +315,7 @@
 	});
 
 	$('#search_missing_subtitles_movie').on('click', function(){
+		$(this).addClass('disabled');
 		$(this).find('i:first').addClass('loading');
 	    $.ajax({
             url: '{{base_url}}search_missing_subtitles_movie/{{no}}'

views/system.tpl

@@ -346,6 +346,7 @@
 	});
 
 	$('.execute').on('click', function(){
+	    $(this).addClass('disabled');
 		$(this).find('i:first').addClass('loading');
 	    $.ajax({
             url: '{{base_url}}execute/' + $(this).data("taskid")

views/wantedmovies.tpl

@@ -157,6 +157,7 @@
 	});
 
 	$('#wanted_search_missing_subtitles_movies').on('click', function(){
+		$(this).addClass('disabled');
 		$(this).find('i:first').addClass('loading');
 	    $.ajax({
             url: '{{base_url}}wanted_search_missing_subtitles'

views/wantedseries.tpl

@@ -164,6 +164,7 @@
 	});
 
 	$('#wanted_search_missing_subtitles').on('click', function(){
+		$(this).addClass('disabled');
 		$(this).find('i:first').addClass('loading');
 	    $.ajax({
             url: '{{base_url}}wanted_search_missing_subtitles'