diff --git a/app/helpers/main_helper.rb b/app/helpers/main_helper.rb
--- a/app/helpers/main_helper.rb
+++ b/app/helpers/main_helper.rb
@@ -1,3 +1,18 @@
 module MainHelper
 
+  def link_to_description_if_any(name, problem, options={})
+    if !problem.url.blank?
+      return link_to name, problem.url, options
+    elsif !problem.description_filename.blank?
+      basename, ext = problem.description_filename.split('.')
+      options[:controller] = 'tasks'
+      options[:action] = 'view'
+      options[:file] = basename
+      options[:ext] = ext
+      return link_to name, options
+    else
+      return ''
+    end
+  end
+
 end