\def\O{{\cal O}}
% Vlozeni obrazku {obrazek}{popisek}{sirka}
-\def\figure#1#2#3{\bigskip\vbox{\centerline{\epsfxsize=#3\epsfbox{#1}}\smallskip\centerline{#2}}\bigskip}
+\def\figure#1#2#3{\midinsert
+\vbox{\centerline{\epsfxsize=#3\epsfbox{#1}}\smallskip\centerline{#2}}
+\endinsert}
% Varianta bez popisku
\def\fig#1#2{\medskip\centerline{\epsfxsize=#2\epsfbox{#1}}\medskip}