add help information to main widget

modified:   ri_tk.py

interface/ri_tk.py

@@ -38,6 +38,13 @@ def set_step_info(s):
     title = translate_text(s)
     var_dict['main.step_name'].set(title)
 
+def set_help_info(s):
+    ''' set help information in base widget'''
+    help = translate_text(s)
+    w = ri_widget.Widget.dict['main.help'].tk_widget
+    w.delete(1.0,Tkinter.END)
+    w.insert(1.0,help)
+
 def create_widget(w):
     ''' w - widget instance '''
 
@@ -46,6 +53,7 @@ def create_widget(w):
     # set step name
     if 'name' in dir(w):
         set_step_info(w.name)
+        set_help_info('#'+w.name+'.help')
 
 import os.path