--- a/index.cgi	Tue May 05 18:08:48 2009 +0300
+++ b/index.cgi	Tue May 05 18:10:25 2009 +0300
@@ -254,7 +254,11 @@
             else :
                 return self.default
         else :
-            return args.get(self.name, self.default, self.type)
+            if self.type == arg_bool and not self.default and self.name in args :
+                return True
+
+            else :
+                return args.get(self.name, self.default, self.type)
 
 class Options (object) :
     def __init__ (self, *options) :