updating course overview block's add css for 2.4 and earlier moodle versions

block_course_overview_uwmoodle.php

@@ -38,7 +38,13 @@ class block_course_overview_uwmoodle extends block_base {
      * block initializations
      */
     public function init() {
+	global $CFG, $PAGE;
+
         $this->title   = get_string('pluginname', 'block_course_overview_uwmoodle');
+        if($CFG->version < '2013051400'){
+            $PAGE->requires->css('/blocks/course_overview_uwmoodle/js/jquery-ui.min.css');
+        }
+
     }
 
     /**
@@ -56,7 +62,7 @@ class block_course_overview_uwmoodle extends block_base {
             $this->page->requires->jquery_plugin('block_course_overview_uwmoodle-animate-enhanced', 'block_course_overview_uwmoodle');
         }else{
             $this->page->requires->js('/blocks/course_overview_uwmoodle/js/jquery-ui.min.js');
-            $this->page->requires->css('/blocks/course_overview_uwmoodle/js/jquery-ui.min.css');
+            //$this->page->requires->css('/blocks/course_overview_uwmoodle/js/jquery-ui.min.css');
         }
         //$this->page->requires->js('/blocks/course_overview_uwmoodle/js/jquery.animate-enhanced.min.js');
         $this->page->requires->js('/blocks/course_overview_uwmoodle/js/course_overview_uwmoodle.js');
@@ -237,4 +243,4 @@ class block_course_overview_uwmoodle extends block_base {
         $config = get_config('block_course_overview_uwmoodle');
         return !empty($config->showwelcomearea);
     }
-}
+}
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