Function Issue!

<p><font face="Arial" size="2">Can anyone tell me what is wrong with the function below ? </font><br /><font
face="Arial"size="2">It throws an ERROR:  syntax error at or near "FETCH" at character 551</font><p><font face="Arial"
size="2">CREATEOR REPLACE FUNCTION "public"."theo_test2" () RETURNS OPAQUE AS'</font><br /><font face="Arial"
size="2">BEGIN</font><br/><font face="Arial" size="2">   declare curr_theo cursor for select * from
node_names;</font><br/><font face="Arial" size="2">   fetch next from curr_theo;</font><br /><font face="Arial"
size="2">  close curr_theo;</font><br /><font face="Arial" size="2">END;</font><br /><font face="Arial"
size="2">'LANGUAGE'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY DEFINER;</font><br /><p><font face="Arial"
size="2">However,this appears to work :</font><br /><font face="Arial" size="2">begin;</font><br /><font face="Arial"
size="2"> declarecurr_theo cursor for select * from node_names;</font><br /><font face="Arial" size="2"> fetch next
fromcurr_theo;</font><br /><font face="Arial" size="2"> close curr_theo;</font><br /><font face="Arial"
size="2">end;</font><table><tr><tdbgcolor="#ffffff"><font
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