anchor.diff:  
   combine(A, B) ->
   	wf:to_atom(wf:to_list(A) ++ "_" ++ wf:to_list(B)).
  +
  +combine(A, B, Step) ->
  +	wf:to_atom(wf:to_list(A) ++ "_" ++ wf:to_list(B) ++ "_" ++ wf:to_list(Step)).
  
positive.code: 					]},
  					#tablecell{class=wizard_buttons_next,body=[
  						#button{
  							id=combine(TopOrBot,next), 
  							show_if=(not IsLast), 
  							text=Record#wizard.next, 
  							postback={next, N, StepIDs}, 
  							delegate=?MODULE 
  						},
  						#button{
  							id=combine(TopOrBot,finish), 
  							show_if=IsLast, 
  							text=Record#wizard.finish, 
  							postback={finish, Tag}, 
  
negative.code: 				#singlerow{cells=[
  					#tablecell{class=wizard_buttons_back,body=[
  						#button{
  							id=combine(TopOrBot,back,N),
  							show_if=(not IsFirst),
  							text=Record#wizard.back,
  							postback={back, N, StepIDs},
  