DynamicCalendarHelper

Recently i have seen the calendar helper from DynamicCalendarHelper & from Calendar Helper Plugin.Plugin seems to be pretty good and for reference they shown Ruby onrailsworkshops

I have seen couple of sites and they have demonstrated how to use the helper with special day

<%= calendar({:year => @year, :month => @month}) do |d| 
cell_text = "#{d.mday}<br />"
cell_attrs = {:class => 'day'} 
@events.each do |e| if e.startdate == d 
cell_text << e.name << "<br />" cell_attrs[:class] = 'specialDay' end 
end [cell_text, cell_attrs] end %>

http://snippets.dzone.com/posts/show/2488

Both the code seems to be fine,but they didnt achieve the sample one Ruby onrailsworkshops.With the help of my friends Air and Mein i achieved the dynamic calendar.Here i listed my code.
First get the helper plugin from

svn: http://topfunky.net/svn/plugins/calendar_helper

Application Helper

# Methods added to this helper will be available to all templates in the application.
module ApplicationHelper
  def pre
    link_to (image_tag('previous.png',:alt=>'Previous')),:date=>@date.last_month
  end
  
  def nex
    link_to (image_tag('next.png',:alt=>'Next')),:date=>@date.next_month
  end
end

Events Controller

class EventsController < ApplicationController
  layout 'base'
  def index
    @date=params[:date] ? params[:date].to_date : Date.today
    @events=Event.all
  end
  
  def add
    
  end
end

Views

<%days,texts,descs = Event.all.collect {|e| e.date } ,Event.all.collect {|e| content_tag(:br, e.name)},Event.all.collect {|e| e.description}%>
<%=calendar(:year => @date.year,:previous_month_text=>pre,:month =>@date.month,:next_month_text=>nex) do |d| 
if days.include?(d) 
index=days.index d
[d.mday, {:class => "specialDay",:onmouseover=>"Element.update('day_detail','#{days[index].strftime('%b %d')}#{texts[index]}#{descs[index]}')",:onmouseout=>"Element.update('day_detail', null)"}]
else [d.mday, {:class => "day"}] end
end %>

Final view