socialforge/app/views/users/show.js.erb

<% if is_current_user %>
    $("#user_homepage_message_list").html("<%= escape_javascript( render :partial =>  'users/user_message_list') %>");
<% else %>
    $("#show_more_activities").replaceWith("<%= escape_javascript( render :partial =>  'users/user_activities',:locals => {:user_activities => @user_activities, :page => @page,:type => @type, :user_id => (@user.type == "AnonymousUser" ? User.current.id : @user.id), :action => "user_activities"} )%>");
<% end %>