How to achieve fork-join_none and fork join_any functionality using fork-join

In reply to MadhavSrikantam:

Your question is lacking a purpose. The code I showed you above produce the same results as the fork/join_none. Here is another example

module top;
  initial 
          begin : b1
            #5 $display($time, " from block b1");
          end : b1
 initial
          begin : b2
            #10 $display($time, " from block b2");
          end : b2
 initial
          begin
          $display($time, " from outside fork-join block");
          end
endmodule

There are many ways to get the same output results. but there is no way to spawn a process in the background without join_none or join_any.