Road-map in web dynpro !!!!!

i created 4 different views first, second,third and forth and each view there is a inbound plug from_main. And in main view there are four outbound plug to_first , to_second,to_third and to_forth and i embedded each view with main view and also create navigation link also.

Here i need to initialize the default step in road map so i wrote set the step as step1 in WDDOINIT method.

This is the method on button next same ways i wrote on action of button previous.

Here i created one method in main view onnavigate corresponding to each step.