diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 410e2484..30a8dba1 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -420,12 +420,8 @@ class ProjectsController < ApplicationController
   # Show changelog for @project
   def changelog
     @trackers = Tracker.find(:all, :conditions => ["is_in_chlog=?", true], :order => 'position')
-    if request.get?
-      @selected_tracker_ids = @trackers.collect {|t| t.id.to_s }
-    else
-      @selected_tracker_ids = params[:tracker_ids].collect { |id| id.to_i.to_s } if params[:tracker_ids] and params[:tracker_ids].is_a? Array
-    end
-    @selected_tracker_ids ||= []
+    retrieve_selected_tracker_ids(@trackers)
+    
     @fixed_issues = @project.issues.find(:all, 
       :include => [ :fixed_version, :status, :tracker ], 
       :conditions => [ "#{IssueStatus.table_name}.is_closed=? and #{Issue.table_name}.tracker_id in (#{@selected_tracker_ids.join(',')}) and #{Issue.table_name}.fixed_version_id is not null", true],
@@ -436,12 +432,8 @@ class ProjectsController < ApplicationController
 
   def roadmap
     @trackers = Tracker.find(:all, :conditions => ["is_in_roadmap=?", true], :order => 'position')
-    if request.get?
-      @selected_tracker_ids = @trackers.collect {|t| t.id.to_s }
-    else
-      @selected_tracker_ids = params[:tracker_ids].collect { |id| id.to_i.to_s } if params[:tracker_ids] and params[:tracker_ids].is_a? Array
-    end
-    @selected_tracker_ids ||= []
+    retrieve_selected_tracker_ids(@trackers)
+    
     @versions = @project.versions.find(:all,
       :conditions => [ "#{Version.table_name}.effective_date>?", Date.today],
       :order => "#{Version.table_name}.effective_date ASC"
@@ -534,6 +526,9 @@ class ProjectsController < ApplicationController
   end
   
   def calendar
+    @trackers = Tracker.find(:all, :order => 'position')
+    retrieve_selected_tracker_ids(@trackers)
+    
     if params[:year] and params[:year].to_i > 1900
       @year = params[:year].to_i
       if params[:month] and params[:month].to_i > 0 and params[:month].to_i < 13
@@ -548,18 +543,24 @@ class ProjectsController < ApplicationController
     # start on monday
     @date_from = @date_from - (@date_from.cwday-1)
     # finish on sunday
-    @date_to = @date_to + (7-@date_to.cwday)  
-      
-    @issues = @project.issues.find(:all, :include => [:tracker, :status, :assigned_to, :priority], 
-                                         :conditions => ["((start_date>=? and start_date<=?) or (due_date>=? and due_date<=?))", @date_from, @date_to, @date_from, @date_to])
-
+    @date_to = @date_to + (7-@date_to.cwday)        
+    
+    @issues = @project.issues.find(:all, 
+                                   :include => [:tracker, :status, :assigned_to, :priority], 
+                                   :conditions => ["((start_date>=? and start_date<=?) or (due_date>=? and due_date<=?)) and #{Issue.table_name}.tracker_id in (#{@selected_tracker_ids.join(',')})", @date_from, @date_to, @date_from, @date_to]
+                                   ) unless @selected_tracker_ids.empty?
+    @issues ||=[]
+    
     @ending_issues_by_days = @issues.group_by {|issue| issue.due_date}
     @starting_issues_by_days = @issues.group_by {|issue| issue.start_date}
-     
+    
     render :layout => false if request.xhr?
   end  
 
   def gantt
+    @trackers = Tracker.find(:all, :order => 'position')
+    retrieve_selected_tracker_ids(@trackers)
+    
     if params[:year] and params[:year].to_i >0
       @year_from = params[:year].to_i
       if params[:month] and params[:month].to_i >=1 and params[:month].to_i <= 12
@@ -577,7 +578,13 @@ class ProjectsController < ApplicationController
     
     @date_from = Date.civil(@year_from, @month_from, 1)
     @date_to = (@date_from >> @months) - 1
-    @issues = @project.issues.find(:all, :order => "start_date, due_date", :include => [:tracker, :status, :assigned_to, :priority], :conditions => ["(((start_date>=? and start_date<=?) or (due_date>=? and due_date<=?) or (start_date<? and due_date>?)) and start_date is not null and due_date is not null)", @date_from, @date_to, @date_from, @date_to, @date_from, @date_to])
+    
+    @issues = @project.issues.find(:all, 
+                                   :order => "start_date, due_date",
+                                   :include => [:tracker, :status, :assigned_to, :priority], 
+                                   :conditions => ["(((start_date>=? and start_date<=?) or (due_date>=? and due_date<=?) or (start_date<? and due_date>?)) and start_date is not null and due_date is not null and #{Issue.table_name}.tracker_id in (#{@selected_tracker_ids.join(',')}))", @date_from, @date_to, @date_from, @date_to, @date_from, @date_to]
+                                   ) unless @selected_tracker_ids.empty?
+    @issues ||=[]
     
     if params[:output]=='pdf'
       @options_for_rfpdf ||= {}
@@ -630,6 +637,14 @@ private
     render_404
   end
   
+  def retrieve_selected_tracker_ids(selectable_trackers)
+    if ids = params[:tracker_ids]
+      @selected_tracker_ids = (ids.is_a? Array) ? ids.collect { |id| id.to_i.to_s } : ids.split('/').collect { |id| id.to_i.to_s }
+    else
+      @selected_tracker_ids = selectable_trackers.collect {|t| t.id.to_s }
+    end
+  end
+  
   # Retrieve query from session or build a new query
   def retrieve_query
     if params[:query_id]
diff --git a/app/views/projects/calendar.rhtml b/app/views/projects/calendar.rhtml
index 8db92a93..23aba7d7 100644
--- a/app/views/projects/calendar.rhtml
+++ b/app/views/projects/calendar.rhtml
@@ -1,29 +1,39 @@
 <h2><%= l(:label_calendar) %></h2>
 
-<% form_tag({:action => 'calendar', :id => @project}) do %>
+<% form_tag do %>
 <table width="100%">
 <tr>
-<td align="left" style="width:150px">
+<td align="left" style="width:15%">
     <%= link_to_remote ('&#171; ' + (@month==1 ? "#{month_name(12)} #{@year-1}" : "#{month_name(@month-1)}")), 
-                        {:update => "content", :url => { :year => (@month==1 ? @year-1 : @year), :month =>(@month==1 ? 12 : @month-1) }},
-                        {:href => url_for(:action => 'calendar', :year => (@month==1 ? @year-1 : @year), :month =>(@month==1 ? 12 : @month-1))}
+                        {:update => "content", :url => { :year => (@month==1 ? @year-1 : @year), :month =>(@month==1 ? 12 : @month-1), :tracker_ids => @selected_tracker_ids }},
+                        {:href => url_for(:action => 'calendar', :year => (@month==1 ? @year-1 : @year), :month =>(@month==1 ? 12 : @month-1), :tracker_ids => @selected_tracker_ids)}
                         %>
 </td>
-<td align="center">
+<td align="center" style="width:55%">
     <%= select_month(@month, :prefix => "month", :discard_type => true) %>
     <%= select_year(@year, :prefix => "year", :discard_type => true) %>
     <%= submit_tag l(:button_submit), :class => "button-small" %>
 </td>
-<td align="right" style="width:150px">
+<td align="left" style="width:15%">
+    <a href="#" onclick="Element.toggle('trackerselect')"><%= l(:label_options) %></a>
+    <div id="trackerselect" class="rightbox overlay" style="width:140px; display:none;">
+    <p><strong><%=l(:label_tracker_plural)%></strong></p>
+    <% @trackers.each do |tracker| %>
+      <%= check_box_tag "tracker_ids[]", tracker.id, (@selected_tracker_ids.include? tracker.id.to_s) %>
+      <%= tracker.name %><br />
+    <% end %>
+    <p><center><%= submit_tag l(:button_apply), :class => 'button-small' %></center></p>
+    </div>
+</td>
+<td align="right" style="width:15%">
     <%= link_to_remote ((@month==12 ? "#{month_name(1)} #{@year+1}" : "#{month_name(@month+1)}") + ' &#187;'), 
-                        {:update => "content", :url => { :year => (@month==12 ? @year+1 : @year), :month =>(@month==12 ? 1 : @month+1) }},
-                        {:href => url_for(:action => 'calendar', :year => (@month==12 ? @year+1 : @year), :month =>(@month==12 ? 1 : @month+1))}
+                        {:update => "content", :url => { :year => (@month==12 ? @year+1 : @year), :month =>(@month==12 ? 1 : @month+1), :tracker_ids => @selected_tracker_ids }},
+                        {:href => url_for(:action => 'calendar', :year => (@month==12 ? @year+1 : @year), :month =>(@month==12 ? 1 : @month+1), :tracker_ids => @selected_tracker_ids)}
                         %>&nbsp;
 </td>
 </tr>
 </table>
 <% end %>
-<br />
 
 <table class="list with-cells">
 <thead>
diff --git a/app/views/projects/gantt.rhtml b/app/views/projects/gantt.rhtml
index a846507a..324aa2ba 100644
--- a/app/views/projects/gantt.rhtml
+++ b/app/views/projects/gantt.rhtml
@@ -1,39 +1,47 @@
 <div class="contextual">
 <%= l(:label_export_to) %>
-<%= link_to 'PDF', {:zoom => @zoom, :year => @year_from, :month => @month_from, :months => @months, :output => 'pdf'}, :class => 'icon icon-pdf' %>
+<%= link_to 'PDF', {:zoom => @zoom, :year => @year_from, :month => @month_from, :months => @months, :tracker_ids => @selected_tracker_ids, :output => 'pdf'}, :class => 'icon icon-pdf' %>
 </div>
 
 <h2><%= l(:label_gantt) %></h2>
 
+<% form_tag do %>
 <table width="100%">
 <tr>
 <td align="left">
-<% form_tag do %>
-<p>
-<input type="text" name="months" size="2" value="<%= @months %>" />
-<%= l(:label_months_from) %>
-<%= select_month(@month_from, :prefix => "month", :discard_type => true) %>
-<%= select_year(@year_from, :prefix => "year", :discard_type => true) %>
-<%= hidden_field_tag 'zoom', @zoom %>
-<%= submit_tag l(:button_submit), :class => "button-small" %>
-</p>
-<% end %>
+    <input type="text" name="months" size="2" value="<%= @months %>" />
+    <%= l(:label_months_from) %>
+    <%= select_month(@month_from, :prefix => "month", :discard_type => true) %>
+    <%= select_year(@year_from, :prefix => "year", :discard_type => true) %>
+    <%= hidden_field_tag 'zoom', @zoom %>
+    <%= submit_tag l(:button_submit), :class => "button-small" %>    
+</td>
+<td>
+    <a href="#" onclick="Element.toggle('trackerselect')"><%= l(:label_options) %></a>
+    <div id="trackerselect" class="rightbox overlay" style="width:140px; display: none;">
+    <p><strong><%=l(:label_tracker_plural)%></strong></p>
+    <% @trackers.each do |tracker| %>
+      <%= check_box_tag "tracker_ids[]", tracker.id, (@selected_tracker_ids.include? tracker.id.to_s) %>
+      <%= tracker.name %><br />
+    <% end %>
+    <p><center><%= submit_tag l(:button_apply), :class => 'button-small' %></center></p>
+    </div>
 </td>
 <td align="right">
 <%= if @zoom < 4
-    link_to image_tag('zoom_in.png'), {:zoom => (@zoom+1), :year => @year_from, :month => @month_from, :months => @months}
+    link_to image_tag('zoom_in.png'), {:zoom => (@zoom+1), :year => @year_from, :month => @month_from, :months => @months, :tracker_ids => @selected_tracker_ids}
   else
     image_tag 'zoom_in_g.png'
   end %>
 <%= if @zoom > 1
-    link_to image_tag('zoom_out.png'), :zoom => (@zoom-1), :year => @year_from, :month => @month_from, :months => @months
+    link_to image_tag('zoom_out.png'),{:zoom => (@zoom-1), :year => @year_from, :month => @month_from, :months => @months, :tracker_ids => @selected_tracker_ids}
   else
     image_tag 'zoom_out_g.png'
   end %>
 </td>
 </tr>
 </table>
-<br />
+<% end %>
 
 <% zoom = 1
 @zoom.times { zoom = zoom * 2 }
@@ -41,22 +49,22 @@
 subject_width = 260
 header_heigth = 18
 
-headers_heigth = header_heigth
+headers_height = header_heigth
 show_weeks = false
 show_days = false
 
 if @zoom >1
     show_weeks = true
-    headers_heigth = 2*header_heigth
+    headers_height = 2*header_heigth
     if @zoom > 2
         show_days = true
-        headers_heigth = 3*header_heigth
+        headers_height = 3*header_heigth
     end
 end
 
 g_width = (@date_to - @date_from + 1)*zoom
 g_height = [(20 * @issues.length + 6)+150, 206].max
-t_height = g_height + headers_heigth
+t_height = g_height + headers_height
 %>
 
 <table width="100%" style="border:0; border-collapse: collapse;">
@@ -64,26 +72,26 @@ t_height = g_height + headers_heigth
 <td style="width:260px;">
 
 <div style="position:relative;height:<%= t_height + 24 %>px;width:<%= subject_width + 1 %>px;">
-<div style="right:-2px;width:<%= subject_width %>px;height:<%= headers_heigth %>px;background: #eee;" class="gantt_hdr"></div>
+<div style="right:-2px;width:<%= subject_width %>px;height:<%= headers_height %>px;background: #eee;" class="gantt_hdr"></div>
 <div style="right:-2px;width:<%= subject_width %>px;height:<%= t_height %>px;border-left: 1px solid #c0c0c0;overflow:hidden;" class="gantt_hdr"></div>
 <%
 #
 # Tasks subjects
 #
-top = headers_heigth + 8
+top = headers_height + 8
 @issues.each do |i| %>
-	<div style="position: absolute;line-height:1.2em;height:16px;top:<%= top %>px;left:4px;overflow:hidden;">
-	<small><%= link_to "#{i.tracker.name} ##{i.id}", { :controller => 'issues', :action => 'show', :id => i }, :title => "#{i.subject}" %>:
-	<%=h i.subject.sub(/^(.{30}[^\s]*\s).*$/, '\1 (...)') %></small>
-	</div>
-<% top = top + 20
+    <div style="position: absolute;line-height:1.2em;height:16px;top:<%= top %>px;left:4px;overflow:hidden;">
+  	<small><%= link_to "#{i.tracker.name} ##{i.id}", { :controller => 'issues', :action => 'show', :id => i }, :title => "#{i.subject}" %>:
+  	<%=h i.subject.sub(/^(.{30}[^\s]*\s).*$/, '\1 (...)') %></small>
+  	</div>
+    <% top = top + 20
 end %>
 </div>
 </td>
 <td>
 
 <div style="position:relative;height:<%= t_height + 24 %>px;overflow:auto;">
-<div style="width:<%= g_width-1 %>px;height:<%= headers_heigth %>px;background: #eee;" class="gantt_hdr">&nbsp;</div>
+<div style="width:<%= g_width-1 %>px;height:<%= headers_height %>px;background: #eee;" class="gantt_hdr">&nbsp;</div>
 <% 
 #
 # Months headers
@@ -160,14 +168,14 @@ end %>
 # Today red line
 #
 if Date.today >= @date_from and Date.today <= @date_to %>
-    <div style="position: absolute;height:<%= g_height %>px;top:<%= headers_heigth + 1 %>px;left:<%= ((Date.today-@date_from+1)*zoom).floor()-1 %>px;width:10px;border-left: 1px dashed red;">&nbsp;</div>
+    <div style="position: absolute;height:<%= g_height %>px;top:<%= headers_height + 1 %>px;left:<%= ((Date.today-@date_from+1)*zoom).floor()-1 %>px;width:10px;border-left: 1px dashed red;">&nbsp;</div>
 <% end %>
 
 <%
 #
 # Tasks
 #
-top = headers_heigth + 10
+top = headers_height + 10
 @issues.each do |i| %>
 	<%
 	i_start_date = (i.start_date >= @date_from ? i.start_date : @date_from )
@@ -209,7 +217,7 @@ end %>
 
 <table width="100%">
 <tr>
-<td align="left"><%= link_to ('&#171; ' + l(:label_previous)), :year => (@date_from << @months).year, :month => (@date_from << @months).month, :zoom => @zoom, :months => @months %></td>
-<td align="right"><%= link_to (l(:label_next) + ' &#187;'), :year => (@date_from >> @months).year, :month => (@date_from >> @months).month, :zoom => @zoom, :months => @months %></td>
+<td align="left"><%= link_to ('&#171; ' + l(:label_previous)), :year => (@date_from << @months).year, :month => (@date_from << @months).month, :zoom => @zoom, :months => @months, :tracker_ids => @selected_tracker_ids %></td>
+<td align="right"><%= link_to (l(:label_next) + ' &#187;'), :year => (@date_from >> @months).year, :month => (@date_from >> @months).month, :zoom => @zoom, :months => @months, :tracker_ids => @selected_tracker_ids %></td>
 </tr>
 </table>
\ No newline at end of file
diff --git a/lang/de.yml b/lang/de.yml
index fb5db516..9c2c18a0 100644
--- a/lang/de.yml
+++ b/lang/de.yml
@@ -351,6 +351,7 @@ label_commits_per_author: Übertragungen pro Autor
 label_view_diff: View differences
 label_diff_inline: inline
 label_diff_side_by_side: side by side
+label_options: Options
 
 button_login: Einloggen
 button_submit: OK
diff --git a/lang/en.yml b/lang/en.yml
index 4ba071d1..ffc13928 100644
--- a/lang/en.yml
+++ b/lang/en.yml
@@ -351,6 +351,7 @@ label_commits_per_author: Commits per author
 label_view_diff: View differences
 label_diff_inline: inline
 label_diff_side_by_side: side by side
+label_options: Options
 
 button_login: Login
 button_submit: Submit
diff --git a/lang/es.yml b/lang/es.yml
index a8472c06..acd03c53 100644
--- a/lang/es.yml
+++ b/lang/es.yml
@@ -351,6 +351,7 @@ label_commits_per_author: Commits per author
 label_view_diff: View differences
 label_diff_inline: inline
 label_diff_side_by_side: side by side
+label_options: Options
 
 button_login: Conexión
 button_submit: Someter
diff --git a/lang/fr.yml b/lang/fr.yml
index 89a0ba48..243557e6 100644
--- a/lang/fr.yml
+++ b/lang/fr.yml
@@ -351,6 +351,7 @@ label_commits_per_author: Commits par auteur
 label_view_diff: Voir les différences
 label_diff_inline: en ligne
 label_diff_side_by_side: côte à côte
+label_options: Options
 
 button_login: Connexion
 button_submit: Soumettre
diff --git a/lang/it.yml b/lang/it.yml
index 9e8399b1..c024b5fc 100644
--- a/lang/it.yml
+++ b/lang/it.yml
@@ -351,6 +351,7 @@ label_commits_per_author: Commits per author
 label_view_diff: View differences
 label_diff_inline: inline
 label_diff_side_by_side: side by side
+label_options: Options
 
 button_login: Login
 button_submit: Invia
diff --git a/lang/ja.yml b/lang/ja.yml
index 4da2fffd..90fdd9f7 100644
--- a/lang/ja.yml
+++ b/lang/ja.yml
@@ -352,6 +352,7 @@ label_commits_per_author: 起票者別のコミット
 label_view_diff: 差分を見る
 label_diff_inline: インライン
 label_diff_side_by_side: 横に並べる
+label_options: Options
 
 button_login: ログイン
 button_submit: 変更
diff --git a/lang/zh.yml b/lang/zh.yml
index 4ac6d55b..b4b57f4a 100644
--- a/lang/zh.yml
+++ b/lang/zh.yml
@@ -354,6 +354,7 @@ label_commits_per_author: Commits per author
 label_view_diff: View differences
 label_diff_inline: inline
 label_diff_side_by_side: side by side
+label_options: Options
 
 button_login: 登录
 button_submit: 提交
diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
index cf67604c..1233231f 100644
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -467,6 +467,12 @@ position: relative;
 margin: 0 5px 5px;
 }
 
+.overlay{ 
+position: absolute;
+margin-left:0;
+z-index: 50;
+}
+
 .layout-active {
 background: #ECF3E1;
 }