<% if params[:page] %>
    $("#show_more_course_activities").replaceWith("<%= escape_javascript( render :partial =>  'courses/course_activity',:locals => {:course_activities => @course_activities, :page => @page,:type => @type} )%>");
<% else %>
    $("#course_activities_content").html("<%= j(render :partial => 'courses/course_activity_content', :locals => {:course_activities => @course_activities, :page => 0}) %>");
<% end %>