Hello everybody,
i''m working with the next code:
<script type="text/javascript">
  function checkElements(form, elementAll, elementToCheck) {
	var form, checkbox = form.elements[elementToCheck];
		totalElements = checkbox.length;
		checkboxAll = form.elements[elementAll];
	for(var n=0; n<totalElements; n++) {
	  checkbox[n].checked = checkboxAll.checked;
	}
  }
  function checkElementAll(form, elementAll, elementCheck) {
	var form, counter=0;
		checkbox = form.elements[elementCheck];
		checkboxAll = form.elements[elementAll];
		totalElements = checkbox.length;
	for(var n=0; n<totalElements; n++) {
	  if (checkbox[n].checked == true) counter++;
	}
	if (totalElements > counter)
	  checkboxAll.checked = false;
	else
	  checkboxAll.checked = true;
  }
</script>
<h2><%= I18n.t("tog_mail.plugin_name") %></h2>
<h3>
<% for folder in @folder.siblings  %>
   <%= link_to folder.name,
{:controller=>"messages",:action=>"index",:id=>folder.id}
-%> (<%folder.messages.unread.count%>) |
<% end %>
<%= link_to I18n.t("tog_mail.member.create_new_message"),
new_member_message_url, {:class => "button mainaction add", :title
=>
I18n.t("tog_mail.member.compose_new_message")} %>
</h3>
<% form_tag member_remove_messages_path(@messages), :method => :delete
do -%>
 <table class="tableB">
  <thead>
    <tr>
      <th scope="col"><input type="checkbox"
name="selecciona_todos"
onclick="checkElements(this.form, this.name,
''messages[]'')" /><label><img src="/tog_core/images/ico/arrow-down.gif?"
title="Todos"></label></th>
      <th scope="col"><%=
I18n.t("tog_mail.model.subject") %></th>
      <th scope="col"><%=
I18n.t("tog_mail.model.from") %></th>
      <th scope="col"><%=
I18n.t("tog_mail.model.to") %></th>
      <th scope="col"><%=
I18n.t("tog_mail.model.when") %></th>
	  <th scope="col">Eliminar</th>
    </tr>
  </thead>
  <tfoot>
    <tr>
      <td colspan="4" class="info_results">
        <span class="info_items"><%= page_entries_info
@messages, :entry_name => 
I18n.t(''tog_mail.member.messages'') %></
span>
        <span class="pages_navigation right">
          <%= will_paginate @messages, :container => false  %>
        </span>
      </td>
	  <td colspan="4" class="info_results"></td>
    </tr>
  </tfoot>
  <tbody>
  <% for msg in @messages %>
    <tr<%= cycle(''
class="pair"'','''') -%>>
       <% cont = link_to msg.subject, member_message_path(:id => msg)
%>
	   <td><input type="checkbox" name="messages[]"
value=""
onclick="checkElementAll(this.form, ''selecciona_todos'',
this.name)" /></td>
       <td><%=  msg.unread? ? content_tag(:strong, cont) : cont
%></
td>
       <td><%= (msg.from != current_user ) ? msg.from.login :
I18n.t("tog_mail.member.you") %></td>
       <td><%= (msg.to != current_user ) ? msg.to.login :
I18n.t("tog_mail.member.you") %></td>
       <td><%= msg.date %></td>
	   <td align="center">
	   	 <% form_for :message, :url =>
member_remove_message_path(msg), :method => :delete do -%>
	   	   <%= submit_tag I18n.t("tog_mail.member.delete"), :type
=>
"image", :src =>"/tog_core/images/ico/delete.gif" %>
		 <% end -%>
	   </td>
    </tr>
  <%end%>
  <% if @messages.blank? %>
    <tr>
       <td colspan="4"><%=
I18n.t("tog_mail.member.no_messages") %></
td>
    </tr>
  <% end %>
  <tbody>
 </table>
 <script type="text/javascript">
   mensajes_seleccionados = $(''.messages'').length
 </script>
 <br />
 <div class="actions">
   <%= link_to
I18n.t("tog_mail.member.remove_all_selected_messages"),
member_remove_messages_path(msg), :confirm =>
I18n.t("tog_mail.member.delete_confirmation"), :method
=> :delete, :class => "button delete" %>
 </div>
<% end -%>
And i want to know the number of selected messages, and then i want to
remove this messages.
Thanks for your help.
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