From ded2b7e166d4b0acab09c00f22f379fbabba709a Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Fri, 05 May 2006 12:53:21 -0400
Subject: [PATCH] Changed login page title regarding product name (Bug #1476413)

---
 program/js/app.js | 1189 ++++++++++++++++++++++++++++++++++++++++++++++++++---------
 1 files changed, 1,004 insertions(+), 185 deletions(-)

diff --git a/program/js/app.js b/program/js/app.js
index 7967f79..e6c9e84 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -6,13 +6,17 @@
  | Copyright (C) 2005, RoundCube Dev, - Switzerland                      |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
- | Modified: 2005/11/06 (roundcube)                                      |
- |                                                                       |
  +-----------------------------------------------------------------------+
- | Author: Thomas Bruederli <roundcube@gmail.com>                        |
+ | Authors: Thomas Bruederli <roundcube@gmail.com>                       |
+ |          Charles McNulty <charles@charlesmcnulty.com>                 |
  +-----------------------------------------------------------------------+
+ 
+  $Id$
 */
-
+// Constants
+var CONTROL_KEY = 1;
+var SHIFT_KEY = 2;
+var CONTROL_SHIFT_KEY = 3;
 
 var rcube_webmail_client;
 
@@ -24,6 +28,7 @@
   this.gui_objects = new Object();
   this.commands = new Object();
   this.selection = new Array();
+  this.last_selected = 0;
 
   // create public reference to myself
   rcube_webmail_client = this;
@@ -33,6 +38,7 @@
   this.dblclick_time = 600;
   this.message_time = 5000;
   this.request_timeout = 180000;
+  this.kepp_alive_interval = 60000;
   this.mbox_expression = new RegExp('[^0-9a-z\-_]', 'gi');
   this.env.blank_img = 'skins/default/images/blank.gif';
   
@@ -106,19 +112,21 @@
     switch (this.task)
       {
       case 'mail':
+        var msg_list_frame = this.gui_objects.mailcontframe;
         var msg_list = this.gui_objects.messagelist;
         if (msg_list)
           {
+          msg_list_frame.onmousedown = function(e){return rcube_webmail_client.click_on_list(e);};
           this.init_messagelist(msg_list);
-          this.enable_command('markread', true);
+          this.enable_command('toggle_status', true);
           }
 
         // enable mail commands
-        this.enable_command('list', 'compose', 'add-contact', true);
+        this.enable_command('list', 'compose', 'add-contact', 'search', 'reset-search', true);
         
         if (this.env.action=='show')
           {
-          this.enable_command('show', 'reply', 'forward', 'moveto', 'delete', 'viewsource', 'print', 'load-attachment', true);
+          this.enable_command('show', 'reply', 'reply-all', 'forward', 'moveto', 'delete', 'viewsource', 'print', 'load-attachment', true);
           if (this.env.next_uid)
             this.enable_command('nextmessage', true);
           if (this.env.prev_uid)
@@ -136,7 +144,10 @@
           this.enable_command('add-attachment', 'send-attachment', 'send', true);
           
         if (this.env.messagecount)
-          this.enable_command('select-all', 'select-none', 'sort', true);
+          this.enable_command('select-all', 'select-none', 'sort', 'expunge', true);
+
+        if (this.env.messagecount && this.env.mailbox==this.env.trash_mailbox)
+          this.enable_command('purge', true);
 
         this.set_page_buttons();
 
@@ -150,15 +161,24 @@
         // show printing dialog
         if (this.env.action=='print')
           window.print();
+          
+        // get unread count for each mailbox
+        if (this.gui_objects.mailboxlist)
+          this.http_request('getunread', '');
 
         break;
 
 
       case 'addressbook':
-        var contacts_list = this.gui_objects.contactslist;
+        var contacts_list      = this.gui_objects.contactslist;
+        var ldap_contacts_list = this.gui_objects.ldapcontactslist;
+
         if (contacts_list)
           this.init_contactslist(contacts_list);
       
+        if (ldap_contacts_list)
+          this.init_ldapsearchlist(ldap_contacts_list);
+
         this.set_page_buttons();
           
         if (this.env.cid)
@@ -168,6 +188,9 @@
           this.enable_command('save', true);
       
         this.enable_command('list', 'add', true);
+
+        this.enable_command('ldappublicsearch', this.env.ldappublicsearch);
+
         break;
 
 
@@ -209,22 +232,92 @@
     this.enable_command('logout', true);
 
     // disable browser's contextmenus
-    //document.oncontextmenu = function(){ return false; }
+    // document.oncontextmenu = function(){ return false; }
 
+    // load body click event
+    document.onmousedown = function(){ return rcube_webmail_client.reset_click(); };
+    document.onkeydown   = function(e){ return rcube_webmail_client.key_pressed(e, msg_list_frame); };
+
+    
     // flag object as complete
     this.loaded = true;
           
     // show message
     if (this.pending_message)
       this.display_message(this.pending_message[0], this.pending_message[1]);
+      
+    // start interval for keep-alive/recent_check signal
+    if (this.kepp_alive_interval && this.task=='mail' && this.gui_objects.messagelist)
+      this.kepp_alive_int = setInterval(this.ref+'.check_for_recent()', this.kepp_alive_interval);
+    else if (this.task!='login')
+      this.kepp_alive_int = setInterval(this.ref+'.send_keep_alive()', this.kepp_alive_interval);
     };
 
+  // reset last clicked if user clicks on anything other than the message table
+  this.reset_click = function()
+    {
+	this.in_message_list = false;
+	};
+	
+  this.click_on_list = function(e)
+    {
+    if (!e)
+      e = window.event;
+
+    this.in_message_list = true;
+    e.cancelBubble = true;
+    };
+
+  this.key_pressed = function(e, msg_list_frame) {
+    if (this.in_message_list != true) 
+      return true;
+    var keyCode = document.layers ? e.which : document.all ? event.keyCode : document.getElementById ? e.keyCode : 0;
+    var mod_key = this.get_modifier(e);
+    switch (keyCode) {
+      case 40:
+      case 38: 
+        return this.use_arrow_key(keyCode, mod_key, msg_list_frame);
+        break;
+      case 46:
+        return this.use_delete_key(keyCode, mod_key, msg_list_frame);
+        break;
+      default:
+        return true;
+    }
+  }
+
+  this.use_arrow_key = function(keyCode, mod_key, msg_list_frame) {
+    var scroll_to = 0;
+    if (keyCode == 40) { // down arrow key pressed
+      new_row = this.get_next_row();
+      if (!new_row) return false;
+      scroll_to = (Number(new_row.offsetTop) + Number(new_row.offsetHeight)) - Number(msg_list_frame.offsetHeight);
+    } else if (keyCode == 38) { // up arrow key pressed
+      new_row = this.get_prev_row();
+      if (!new_row) return false;
+      scroll_to = new_row.offsetTop;
+    } else {return true;}
+	
+    this.select_row(new_row.uid,mod_key,true);
+
+    if (((Number(new_row.offsetTop)) < (Number(msg_list_frame.scrollTop))) || 
+       ((Number(new_row.offsetTop) + Number(new_row.offsetHeight)) > (Number(msg_list_frame.scrollTop) + Number(msg_list_frame.offsetHeight)))) {
+      msg_list_frame.scrollTop = scroll_to;
+    }
+    return false;
+  };
+  
+  this.use_delete_key = function(keyCode, mod_key, msg_list_frame){
+    this.command('delete','',this);
+    return false;
+  }
 
   // get all message rows from HTML table and init each row
   this.init_messagelist = function(msg_list)
     {
     if (msg_list && msg_list.tBodies[0])
       {
+		  
       this.message_rows = new Array();
 
       var row;
@@ -253,19 +346,23 @@
               
       this.message_rows[uid] = {id:row.id, obj:row,
                                 classname:row.className,
+                                deleted:this.env.messages[uid] ? this.env.messages[uid].deleted : null,
                                 unread:this.env.messages[uid] ? this.env.messages[uid].unread : null,
                                 replied:this.env.messages[uid] ? this.env.messages[uid].replied : null};
               
       // set eventhandlers to table row
       row.onmousedown = function(e){ return rcube_webmail_client.drag_row(e, this.uid); };
       row.onmouseup = function(e){ return rcube_webmail_client.click_row(e, this.uid); };
-              
+
+      if (document.all)
+        row.onselectstart = function() { return false; };
+
       // set eventhandler to message icon
       if ((msg_icon = row.cells[0].childNodes[0]) && row.cells[0].childNodes[0].nodeName=='IMG')
         {                
         msg_icon.id = 'msgicn_'+uid;
         msg_icon._row = row;
-        msg_icon.onmousedown = function(e) { rcube_webmail_client.command('markread', this); };
+        msg_icon.onmousedown = function(e) { rcube_webmail_client.command('toggle_status', this); };
                 
         // get message icon and save original icon src
         this.message_rows[uid].icon = msg_icon;
@@ -281,6 +378,7 @@
       return false;
     
     //this.messageform = this.gui_objects.messageform;
+    var input_from = rcube_find_object('_from');
     var input_to = rcube_find_object('_to');
     var input_cc = rcube_find_object('_cc');
     var input_bcc = rcube_find_object('_bcc');
@@ -295,6 +393,10 @@
       this.init_address_input_events(input_cc);
     if (input_bcc)
       this.init_address_input_events(input_bcc);
+      
+    // add signature according to selected identity
+    if (input_from && input_from.type=='select-one')
+      this.change_identity(input_from);
 
     if (input_to && input_to.value=='')
       input_to.focus();
@@ -302,6 +404,9 @@
       input_subject.focus();
     else if (input_message)
       this.set_caret2start(input_message); // input_message.focus();
+    
+    // get summary of all field values
+    this.cmp_hash = this.compose_field_hash();
     };
 
 
@@ -351,7 +456,27 @@
     this.list_rows = this.contact_rows;
     
     if (this.env.cid)
-      this.select(this.env.cid);
+      this.highlight_row(this.env.cid);
+    };
+
+
+  // get all contact rows from HTML table and init each row
+  this.init_ldapsearchlist = function(ldap_contacts_list)
+    {
+    if (ldap_contacts_list && ldap_contacts_list.tBodies[0])
+      {
+      this.ldap_contact_rows = new Array();
+
+      var row;
+      for(var r=0; r<ldap_contacts_list.tBodies[0].childNodes.length; r++)
+        {
+        row = ldap_contacts_list.tBodies[0].childNodes[r];
+        this.init_table_row(row, 'ldap_contact_rows');
+        }
+      }
+
+    // alias to common rows array
+    this.list_rows = this.ldap_contact_rows;
     };
 
 
@@ -395,7 +520,7 @@
     this.list_rows = this.identity_rows;
     
     if (this.env.iid)
-      this.select(this.env.iid);    
+      this.highlight_row(this.env.iid);    
     };
     
 
@@ -423,6 +548,15 @@
 
       return false;
       }
+      
+      
+   // check input before leaving compose step
+   if (this.task=='mail' && this.env.action=='compose' && (command=='list' || command=='mail' || command=='addressbook' || command=='settings'))
+     {
+     if (this.cmp_hash != this.compose_field_hash() && !confirm(this.get_label('notsentwarning')))
+        return false;
+     }
+
 
     // process command
     switch (command)
@@ -447,7 +581,11 @@
       // misc list commands
       case 'list':
         if (this.task=='mail')
+          {
+          if (this.env.search_request<0 || (this.env.search_request && props != this.env.mailbox))
+            this.reset_qsearch();
           this.list_mailbox(props);
+          }
         else if (this.task=='addressbook')
           this.list_contacts();
         break;
@@ -456,8 +594,17 @@
         // get the type of sorting
         var a_sort = props.split('_');
         var sort_col = a_sort[0];
-        var sort_order = a_sort[1].toUpperCase();
+        var sort_order = a_sort[1] ? a_sort[1].toUpperCase() : null;
         var header;
+        
+        // no sort order specified: toggle
+        if (sort_order==null)
+          {
+          if (this.env.sort_col==sort_col)
+            sort_order = this.env.sort_order=='ASC' ? 'DESC' : 'ASC';
+          else
+            sort_order = this.env.sort_order;
+          }
         
         if (this.env.sort_col==sort_col && this.env.sort_order==sort_order)
           break;
@@ -473,7 +620,7 @@
         this.env.sort_order = sort_order;
 
         // reload message list
-        this.list_mailbox('', '', props);
+        this.list_mailbox('', '', sort_col+'_'+sort_order);
         break;
 
       case 'nextpage':
@@ -482,6 +629,17 @@
 
       case 'previouspage':
         this.list_page('prev');
+        break;
+
+      case 'expunge':
+        if (this.env.messagecount)
+          this.expunge_mailbox(this.env.mailbox);
+        break;
+
+      case 'purge':
+      case 'empty-mailbox':
+        if (this.env.messagecount)
+          this.purge_mailbox(this.env.mailbox);
         break;
 
 
@@ -503,7 +661,15 @@
 
       case 'add':
         if (this.task=='addressbook')
-          this.load_contact(0, 'add');
+          if (!window.frames[this.env.contentframe].rcmail)
+            this.load_contact(0, 'add');
+          else
+            {
+            if (window.frames[this.env.contentframe].rcmail.selection.length)
+              this.add_ldap_contacts();
+            else
+              this.load_contact(0, 'add');
+            }
         else if (this.task=='settings')
           {
           this.clear_selection();
@@ -557,9 +723,7 @@
 
       case 'delete':
         // mail task
-        if (this.task=='mail' && this.env.trash_mailbox && String(this.env.mailbox).toLowerCase()!=String(this.env.trash_mailbox).toLowerCase())
-          this.move_messages(this.env.trash_mailbox);
-        else if (this.task=='mail')
+        if (this.task=='mail')
           this.delete_messages();
         // addressbook task
         else if (this.task=='addressbook')
@@ -576,7 +740,7 @@
         this.move_messages(props);
         break;
         
-      case 'markread':
+      case 'toggle_status':
         if (props && !props._row)
           break;
         
@@ -587,9 +751,10 @@
           {
           uid = props._row.uid;
           this.dont_select = true;
-          
           // toggle read/unread
-          if (!this.message_rows[uid].unread)
+          if (this.message_rows[uid].deleted) {
+          	flag = 'undelete';
+          } else if (!this.message_rows[uid].unread)
             flag = 'unread';
           }
           
@@ -637,7 +802,8 @@
           this.show_message(this.env.prev_uid);
           //location.href = this.env.comm_path+'&_action=show&_uid='+this.env.prev_uid+'&_mbox='+this.env.mailbox;
         break;
-
+      
+      
       case 'compose':
         var url = this.env.comm_path+'&_action=compose';
         
@@ -654,65 +820,46 @@
           // get selected contacts
           else
             {
-            for (var n=0; n<this.selection.length; n++)
-              a_cids[a_cids.length] = this.selection[n];
+            if (!window.frames[this.env.contentframe].rcmail.selection.length)
+              {
+              for (var n=0; n<this.selection.length; n++)
+                a_cids[a_cids.length] = this.selection[n];
+              }
+            else
+              {
+              var frameRcmail = window.frames[this.env.contentframe].rcmail;
+              // get the email address(es)
+              for (var n=0; n<frameRcmail.selection.length; n++)
+                a_cids[a_cids.length] = frameRcmail.ldap_contact_rows[frameRcmail.selection[n]].obj.cells[1].innerHTML;
+              }
             }
-
           if (a_cids.length)
             url += '&_to='+a_cids.join(',');
           else
             break;
+            
           }
         else if (props)
            url += '&_to='+props;
 
+        // don't know if this is necessary...
+        url = url.replace(/&_framed=1/, "");
+
         this.set_busy(true);
-        location.href = url;
-        break;      
+
+        // need parent in case we are coming from the contact frame
+        if (this.env.framed)
+          parent.location.href = url;
+        else
+          location.href = url;
+        break;    
 
       case 'send':
         if (!this.gui_objects.messageform)
           break;
           
-        // check input fields
-        var input_to = rcube_find_object('_to');
-        var input_subject = rcube_find_object('_subject');
-        var input_message = rcube_find_object('_message');
-
-        // check for empty recipient
-        if (input_to && !rcube_check_email(input_to.value, true))
-          {
-          alert(this.get_label('norecipientwarning'));
-          input_to.focus();
+        if (!this.check_compose_input())
           break;
-          }
-
-        // display localized warning for missing subject
-        if (input_subject && input_subject.value == '')
-          {
-          var subject = prompt(this.get_label('nosubjectwarning'), this.get_label('nosubject'));
-
-          // user hit cancel, so don't send
-          if (!subject && subject !== '')
-            {
-            input_subject.focus();
-            break;
-            }
-          else
-            {
-            input_subject.value = subject ? subject : this.get_label('nosubject');            
-            }
-          }
-
-        // check for empty body
-        if (input_message.value=='')
-          {
-          if (!confirm(this.get_label('nobodywarning')))
-            {
-            input_message.focus();
-            break;
-            }
-          }
 
         // all checks passed, send message
         this.set_busy(true, 'sendingmessage');
@@ -727,12 +874,13 @@
         this.upload_file(props)      
         break;
 
+      case 'reply-all':
       case 'reply':
         var uid;
         if (uid = this.get_single_uid())
           {
           this.set_busy(true);
-          location.href = this.env.comm_path+'&_action=compose&_reply_uid='+uid+'&_mbox='+escape(this.env.mailbox);
+          location.href = this.env.comm_path+'&_action=compose&_reply_uid='+uid+'&_mbox='+escape(this.env.mailbox)+(command=='reply-all' ? '&_all=1' : '');
           }
         break;      
 
@@ -768,6 +916,31 @@
       case 'add-contact':
         this.add_contact(props);
         break;
+      
+      // mail quicksearch
+      case 'search':
+        if (!props && this.gui_objects.qsearchbox)
+          props = this.gui_objects.qsearchbox.value;
+        if (props)
+          this.qsearch(escape(props), this.env.mailbox);
+        break;
+
+      // reset quicksearch        
+      case 'reset-search':
+        var s = this.env.search_request;
+        this.reset_qsearch();
+        
+        if (s)
+          this.list_mailbox(this.env.mailbox);
+        break;
+
+      // ldap search
+      case 'ldappublicsearch':
+        if (this.gui_objects.ldappublicsearchform) 
+          this.gui_objects.ldappublicsearchform.submit();
+        else 
+          this.ldappublicsearch(command);
+        break; 
 
 
       // user settings commands
@@ -799,7 +972,7 @@
         break;
 
       case 'delete-folder':
-        if (confirm('Do you really want to delete this folder?'))
+        if (confirm(this.get_label('deletefolderconfirm')))
           this.delete_folder(props);
         break;
 
@@ -925,11 +1098,12 @@
     if (this.dont_select)
       return false;
 
+    // selects currently unselected row
     if (!this.in_selection_before)
-      {
-      var shift = this.check_shiftkey(e);
-      this.select(id, shift);
-      }
+    {
+	  var mod_key = this.get_modifier(e);
+	  this.select_row(id,mod_key,false);
+    }
     
     if (this.selection.length)
       {
@@ -945,8 +1119,8 @@
   // onmouseup-handler of message list row
   this.click_row = function(e, id)
     {
-    var shift = this.check_shiftkey(e);
-    
+    var mod_key = this.get_modifier(e);
+
     // don't do anything (another action processed before)
     if (this.dont_select)
       {
@@ -954,27 +1128,58 @@
       return false;
       }
     
+    // unselects currently selected row    
     if (!this.drag_active && this.in_selection_before==id)
-      this.select(id, (shift && this.task!='settings'));
-    
+      this.select_row(id,mod_key,false);
+
     this.drag_start = false;
     this.in_selection_before = false;
         
     // row was double clicked
-    if (this.task=='mail' && this.list_rows && this.list_rows[id].clicked && !shift)
+    if (this.task=='mail' && this.list_rows && this.list_rows[id].clicked && !mod_key)
       {
       this.show_message(id);
       return false;
       }
     else if (this.task=='addressbook')
       {
-      if (this.selection.length==1 && this.env.contentframe)
+      if (this.contact_rows && this.selection.length==1)
+        {
         this.load_contact(this.selection[0], 'show', true);
-      else if (this.task=='addressbook' && this.list_rows && this.list_rows[id].clicked)
+        // change the text for the add contact button
+        var links = parent.document.getElementById('abooktoolbar').getElementsByTagName('A');
+        for (i = 0; i < links.length; i++)
+          {
+          var onclickstring = new String(links[i].onclick);
+          if (onclickstring.search('\"add\"') != -1)
+            links[i].title = this.env.newcontact;
+          }
+        }
+      else if (this.contact_rows && this.contact_rows[id].clicked)
         {
         this.load_contact(id, 'show');
         return false;
         }
+      else if (this.ldap_contact_rows && !this.ldap_contact_rows[id].clicked)
+        {
+        // clear selection
+        parent.rcmail.clear_selection();
+
+        // disable delete
+        parent.rcmail.set_button('delete', 'pas');
+
+        // change the text for the add contact button
+        var links = parent.document.getElementById('abooktoolbar').getElementsByTagName('A');
+        for (i = 0; i < links.length; i++)
+          {
+          var onclickstring = new String(links[i].onclick);
+          if (onclickstring.search('\"add\"') != -1)
+            links[i].title = this.env.addcontact;
+          }
+        }
+      // handle double click event
+      else if (this.ldap_contact_rows && this.selection.length==1 && this.ldap_contact_rows[id].clicked)
+        this.command('compose', this.ldap_contact_rows[id].obj.cells[1].innerHTML);
       else if (this.env.contentframe)
         {
         var elm = document.getElementById(this.env.contentframe);
@@ -995,14 +1200,31 @@
 
 
 
-
   /*********************************************************/
   /*********     (message) list functionality      *********/
   /*********************************************************/
 
-
-  // select/unselect a row
-  this.select = function(id, multiple)
+  // get next and previous rows that are not hidden
+  this.get_next_row = function(){
+    var last_selected_row = this.list_rows[this.last_selected];
+    var new_row = last_selected_row.obj.nextSibling;
+    while (new_row && (new_row.nodeType != 1 || new_row.style.display == 'none')) {
+      new_row = new_row.nextSibling;
+    }
+    return new_row;
+  }
+  
+  this.get_prev_row = function(){
+    var last_selected_row = this.list_rows[this.last_selected];
+    var new_row = last_selected_row.obj.previousSibling;
+    while (new_row && (new_row.nodeType != 1 || new_row.style.display == 'none')) {
+      new_row = new_row.previousSibling;
+    }
+    return new_row;
+  }
+  
+  // highlight/unhighlight a row
+  this.highlight_row = function(id, multiple)
     {
     var selected = false
     
@@ -1019,7 +1241,7 @@
       if (!this.in_selection(id))  // select row
         {
         this.selection[this.selection.length] = id;
-        this.set_classname(this.list_rows[id].obj, 'selected', true);        
+        this.set_classname(this.list_rows[id].obj, 'selected', true);    
         }
       else  // unselect row
         {
@@ -1029,14 +1251,13 @@
         this.selection = a_pre.concat(a_post);
         this.set_classname(this.list_rows[id].obj, 'selected', false);
         }
-        
       selected = (this.selection.length==1);
       }
 
     // enable/disable commands for message
     if (this.task=='mail')
       {
-      this.enable_command('show', 'reply', 'forward', 'print', selected);
+      this.enable_command('show', 'reply', 'reply-all', 'forward', 'print', selected);
       this.enable_command('delete', 'moveto', this.selection.length>0 ? true : false);
       }
     else if (this.task=='addressbook')
@@ -1046,6 +1267,57 @@
       }
     };
 
+
+// selects or unselects the proper row depending on the modifier key pressed
+  this.select_row = function(id,mod_key,with_mouse)  { 
+  	if (!mod_key) {
+      this.shift_start = id;
+  	  this.highlight_row(id, false);
+    } else {
+      switch (mod_key) {
+        case SHIFT_KEY: { 
+          this.shift_select(id,false); 
+          break; }
+        case CONTROL_KEY: { 
+          this.shift_start = id;
+          if (!with_mouse)
+            this.highlight_row(id, true); 
+          break; 
+          }
+        case CONTROL_SHIFT_KEY: { 
+          this.shift_select(id,true);
+          break;
+          }
+        default: {
+          this.highlight_row(id, false); 
+          break;
+          }
+      }
+	}
+	if (this.last_selected != 0) { this.set_classname(this.list_rows[this.last_selected].obj, 'focused', false);}
+    this.last_selected = id;
+    this.set_classname(this.list_rows[id].obj, 'focused', true);        
+  };
+
+  this.shift_select = function(id, control) {
+    var from_rowIndex = this.list_rows[this.shift_start].obj.rowIndex;
+    var to_rowIndex = this.list_rows[id].obj.rowIndex;
+        
+    var i = ((from_rowIndex < to_rowIndex)? from_rowIndex : to_rowIndex);
+    var j = ((from_rowIndex > to_rowIndex)? from_rowIndex : to_rowIndex);
+    
+	// iterate through the entire message list
+    for (var n in this.list_rows) {
+      if ((this.list_rows[n].obj.rowIndex >= i) && (this.list_rows[n].obj.rowIndex <= j)) {
+        if (!this.in_selection(n))
+          this.highlight_row(n, true);
+      } else {
+        if  (this.in_selection(n) && !control)
+          this.highlight_row(n, true);
+      }
+    }
+  };
+  
 
   this.clear_selection = function()
     {
@@ -1079,7 +1351,7 @@
     
     for (var n in this.list_rows)
       if (!filter || this.list_rows[n][filter]==true)
-      this.select(n, true);
+      this.highlight_row(n, true);
     };
     
 
@@ -1129,6 +1401,7 @@
   // list messages of a specific mailbox
   this.list_mailbox = function(mbox, page, sort)
     {
+    this.last_selected = 0;
     var add_url = '';
     var target = window;
 
@@ -1147,6 +1420,10 @@
       this.env.current_page = page;
       this.clear_selection();
       }
+    
+    // also send search request to get the right messages
+    if (this.env.search_request)
+      add_url += '&_search='+this.env.search_request;
       
     if (this.env.mailbox!=mbox)
       this.select_mailbox(mbox);
@@ -1176,7 +1453,18 @@
   // send remote request to load message list
   this.list_mailbox_remote = function(mbox, page, add_url)
     {
-    // clear message list
+    // clear message list first
+    this.clear_message_list();
+
+    // send request to server
+    var url = '_mbox='+escape(mbox)+(page ? '&_page='+page : '');
+    this.set_busy(true, 'loading');
+    this.http_request('list', url+add_url, true);
+    };
+
+
+  this.clear_message_list = function()
+    {
     var table = this.gui_objects.messagelist;
     var tbody = document.createElement('TBODY');
     table.insertBefore(tbody, table.tBodies[0]);
@@ -1184,13 +1472,50 @@
     
     this.message_rows = new Array();
     this.list_rows = this.message_rows;
-
-    // send request to server
-    var url = '_mbox='+escape(mbox)+(page ? '&_page='+page : '');
-    this.set_busy(true, 'loading');
-    this.http_request('list', url+add_url);
+    
     };
 
+
+  this.expunge_mailbox = function(mbox)
+    {
+    var lock = false;
+    var add_url = '';
+    
+    // lock interface if it's the active mailbox
+    if (mbox == this.env.mailbox)
+       {
+       lock = true;
+       this.set_busy(true, 'loading');
+       add_url = '&_reload=1';
+       }
+
+    // send request to server
+    var url = '_mbox='+escape(mbox);
+    this.http_request('expunge', url+add_url, lock);
+    };
+
+
+  this.purge_mailbox = function(mbox)
+    {
+    var lock = false;
+    var add_url = '';
+    
+    if (!confirm(this.get_label('purgefolderconfirm')))
+      return false;
+    
+    // lock interface if it's the active mailbox
+    if (mbox == this.env.mailbox)
+       {
+       lock = true;
+       this.set_busy(true, 'loading');
+       add_url = '&_reload=1';
+       }
+
+    // send request to server
+    var url = '_mbox='+escape(mbox);
+    this.http_request('purge', url+add_url, lock);
+    };
+    
 
   // move selected messages to the specified mailbox
   this.move_messages = function(mbox)
@@ -1215,20 +1540,26 @@
         if (this.message_rows[id].obj)
           this.message_rows[id].obj.style.display = 'none';
         }
+      next_row = this.get_next_row();
+      prev_row = this.get_prev_row();
+      new_row = (next_row) ? next_row : prev_row;
+      this.select_row(new_row.uid,false,false);
       }
+      
+    var lock = false;
 
     // show wait message
     if (this.env.action=='show')
+      {
+      lock = true;
       this.set_busy(true, 'movingmessage');
+      }
 
     // send request to server
-    this.http_request('moveto', '_uid='+a_uids.join(',')+'&_mbox='+escape(this.env.mailbox)+'&_target_mbox='+escape(mbox)+'&_from='+(this.env.action ? this.env.action : ''));
+    this.http_request('moveto', '_uid='+a_uids.join(',')+'&_mbox='+escape(this.env.mailbox)+'&_target_mbox='+escape(mbox)+'&_from='+(this.env.action ? this.env.action : ''), lock);
     };
 
-
-  // delete selected messages from the current mailbox
-  this.delete_messages = function()
-    {
+  this.permanently_remove_messages = function() {
     // exit if no mailbox specified or if selection is empty
     if (!(this.selection.length || this.env.uid))
       return;
@@ -1250,10 +1581,41 @@
           this.message_rows[id].obj.style.display = 'none';
         }
       }
+      next_row = this.get_next_row();
+      prev_row = this.get_prev_row();
+      new_row = (next_row) ? next_row : prev_row;
+      this.select_row(new_row.uid,false,false);
 
     // send request to server
     this.http_request('delete', '_uid='+a_uids.join(',')+'&_mbox='+escape(this.env.mailbox)+'&_from='+(this.env.action ? this.env.action : ''));
-    };
+  }
+    
+    
+  // delete selected messages from the current mailbox
+  this.delete_messages = function()
+    {
+    // exit if no mailbox specified or if selection is empty
+    if (!(this.selection.length || this.env.uid))
+      return;
+    // if there is a trash mailbox defined and we're not currently in it:
+    if (this.env.trash_mailbox && String(this.env.mailbox).toLowerCase()!=String(this.env.trash_mailbox).toLowerCase())
+      this.move_messages(this.env.trash_mailbox);
+    // if there is a trash mailbox defined but we *are* in it:
+    else if (this.env.trash_mailbox && String(this.env.mailbox).toLowerCase() == String(this.env.trash_mailbox).toLowerCase())
+      this.permanently_remove_messages();
+    // if there isn't a defined trash mailbox and the config is set to flag for deletion
+    else if (!this.env.trash_mailbox && this.env.flag_for_deletion) {
+      this.mark_message('delete');
+      next_row = this.get_next_row();
+      prev_row = this.get_prev_row();
+      new_row = (next_row) ? next_row : prev_row;
+      this.select_row(new_row.uid,false,false);
+    // if there isn't a defined trash mailbox and the config is set NOT to flag for deletion
+    }else if (!this.env.trash_mailbox && !this.env.flag_for_deletion) {
+      this.permanently_remove_messages();
+    }
+    return;
+  };
 
 
   // set a specific flag to one or more messages
@@ -1272,13 +1634,24 @@
         {
         id = this.selection[n];
         a_uids[a_uids.length] = id;
-      
-        // 'remove' message row from list (just hide it)
-        if (this.message_rows[id].obj)
-          this.message_rows[id].obj.style.display = 'none';
         }
       }
+      switch (flag) {
+        case 'read':
+        case 'unread':
+          this.toggle_read_status(flag,a_uids);
+          break;
+        case 'delete':
+        case 'undelete':
+          this.toggle_delete_status(flag,a_uids);
+          break;
+      }
+    // send request to server
+    this.http_request('mark', '_uid='+a_uids.join(',')+'&_flag='+flag);
+    };
 
+  // set class to read/unread
+  this.toggle_read_status = function(flag, a_uids) {
     // mark all message rows as read/unread
     var icn_src;
     for (var i=0; i<a_uids.length; i++)
@@ -1311,16 +1684,163 @@
           this.message_rows[uid].icon.src = icn_src;
         }
       }
+  }
+  
+  // mark all message rows as deleted/undeleted
+  this.toggle_delete_status = function(flag, a_uids) {
+    if (this.env.read_when_deleted) {
+      this.toggle_read_status('read',a_uids);
+    }
 
-    // send request to server
-    this.http_request('mark', '_uid='+a_uids.join(',')+'&_flag='+flag);
-    };
+    var icn_src;
+    for (var i=0; i<a_uids.length; i++)
+      {
+      uid = a_uids[i];
+      if (this.message_rows[uid])
+        {
+        this.message_rows[uid].deleted = (flag=='undelete' ? false : true);
+        
+        if (this.message_rows[uid].classname.indexOf('deleted')<0 && this.message_rows[uid].deleted)
+          {
+          this.message_rows[uid].classname += ' deleted';
+          this.set_classname(this.message_rows[uid].obj, 'deleted', true);
 
+          if (this.env.deletedicon)
+            icn_src = this.env.deletedicon;
+          }
+        else if (!this.message_rows[uid].deleted)
+          {
+          this.message_rows[uid].classname = this.message_rows[uid].classname.replace(/\s*deleted/, '');
+          this.set_classname(this.message_rows[uid].obj, 'deleted', false);
+
+          if (this.message_rows[uid].unread && this.env.unreadicon)
+            icn_src = this.env.unreadicon;
+          else if (this.message_rows[uid].replied && this.env.repliedicon)
+            icn_src = this.env.repliedicon;
+          else if (this.env.messageicon)
+            icn_src = this.env.messageicon;
+          }
+
+        if (this.message_rows[uid].icon && icn_src)
+          this.message_rows[uid].icon.src = icn_src;
+        }
+      }
+  }
 
 
   /*********************************************************/
   /*********        message compose methods        *********/
   /*********************************************************/
+  
+  
+  // checks the input fields before sending a message
+  this.check_compose_input = function()
+    {
+    // check input fields
+    var input_to = rcube_find_object('_to');
+    var input_subject = rcube_find_object('_subject');
+    var input_message = rcube_find_object('_message');
+
+    // check for empty recipient
+    if (input_to && !rcube_check_email(input_to.value, true))
+      {
+      alert(this.get_label('norecipientwarning'));
+      input_to.focus();
+      return false;
+      }
+
+    // display localized warning for missing subject
+    if (input_subject && input_subject.value == '')
+      {
+      var subject = prompt(this.get_label('nosubjectwarning'), this.get_label('nosubject'));
+
+      // user hit cancel, so don't send
+      if (!subject && subject !== '')
+        {
+        input_subject.focus();
+        return false;
+        }
+      else
+        {
+        input_subject.value = subject ? subject : this.get_label('nosubject');            
+        }
+      }
+
+    // check for empty body
+    if (input_message.value=='')
+      {
+      if (!confirm(this.get_label('nobodywarning')))
+        {
+        input_message.focus();
+        return false;
+        }
+      }
+
+    return true;
+    };
+    
+    
+  this.compose_field_hash = function()
+    {
+    // check input fields
+    var input_to = rcube_find_object('_to');
+    var input_cc = rcube_find_object('_to');
+    var input_bcc = rcube_find_object('_to');
+    var input_subject = rcube_find_object('_subject');
+    var input_message = rcube_find_object('_message');
+    
+    var str = '';
+    if (input_to && input_to.value)
+      str += input_to.value+':';
+    if (input_cc && input_cc.value)
+      str += input_cc.value+':';
+    if (input_bcc && input_bcc.value)
+      str += input_bcc.value+':';
+    if (input_subject && input_subject.value)
+      str += input_subject.value+':';
+    if (input_message && input_message.value)
+      str += input_message.value;
+
+    return str;
+    };
+    
+  
+  this.change_identity = function(obj)
+    {
+    if (!obj || !obj.options)
+      return false;
+
+    var id = obj.options[obj.selectedIndex].value;
+    var input_message = rcube_find_object('_message');
+    var message = input_message ? input_message.value : '';
+    var sig, p;
+
+    // remove the 'old' signature
+    if (this.env.identity && this.env.signatures && this.env.signatures[this.env.identity])
+      {
+      sig = this.env.signatures[this.env.identity];
+      if (sig.indexOf('-- ')!=0)
+        sig = '-- \n'+sig;
+
+      p = message.lastIndexOf(sig);
+      if (p>=0)
+        message = message.substring(0, p-1) + message.substring(p+sig.length, message.length);
+      }
+
+    // add the new signature string
+    if (this.env.signatures && this.env.signatures[id])
+      {
+      sig = this.env.signatures[id];
+      if (sig.indexOf('-- ')!=0)
+        sig = '-- \n'+sig;
+      message += '\n'+sig;
+      }
+
+    if (input_message)
+      input_message.value = message;
+      
+    this.env.identity = id;
+    };
 
 
   this.show_attachment_form = function(a)
@@ -1419,6 +1939,26 @@
       this.http_request('addcontact', '_address='+value);
     };
 
+  // send remote request to search mail
+  this.qsearch = function(value, mbox)
+    {
+    if (value && mbox)
+      {
+      this.clear_message_list();
+      this.set_busy(true, 'searching');
+      this.http_request('search', '_search='+value+'&_mbox='+mbox, true);
+      }
+    };
+
+  // reset quick-search form
+  this.reset_qsearch = function()
+    {
+    if (this.gui_objects.qsearchbox)
+      this.gui_objects.qsearchbox.value = '';
+      
+    this.env.search_request = null;
+    };
+    
 
   /*********************************************************/
   /*********     keyboard live-search methods      *********/
@@ -1691,7 +2231,7 @@
     // send request to server
     var url = page ? '&_page='+page : '';
     this.set_busy(true, 'loading');
-    this.http_request('list', url);
+    this.http_request('list', url, true);
     };
 
 
@@ -1710,6 +2250,7 @@
       return false;
       
     //if (this.env.framed && add_url=='')
+    
     //  add_url = '&_framed=1';
     
     if (action && (cid || action=='add'))
@@ -1723,9 +2264,9 @@
   this.delete_contacts = function()
     {
     // exit if no mailbox specified or if selection is empty
-    if (!(this.selection.length || this.env.cid))
+    if (!(this.selection.length || this.env.cid) || !confirm(this.get_label('deletecontactconfirm')))
       return;
-    
+      
     var a_cids = new Array();
 
     if (this.env.cid)
@@ -1768,6 +2309,50 @@
         row.cells[c].innerHTML = cols_arr[c];
 
     };
+  
+  
+  // load ldap search form
+  this.ldappublicsearch = function(action)
+    {
+    var add_url = '';
+    var target = window;
+    if (this.env.contentframe && window.frames && window.frames[this.env.contentframe])
+      {
+      add_url = '&_framed=1';
+      target = window.frames[this.env.contentframe];
+      document.getElementById(this.env.contentframe).style.visibility = 'inherit';
+      }
+    else
+      return false; 
+
+
+    if (action == 'ldappublicsearch')
+      target.location.href = this.env.comm_path+'&_action='+action+add_url;
+    };
+ 
+  // add ldap contacts to address book
+  this.add_ldap_contacts = function()
+    {
+    if (window.frames[this.env.contentframe].rcmail)
+      {
+      var frame = window.frames[this.env.contentframe];
+
+      // build the url
+      var url    = '&_framed=1';
+      var emails = '&_emails=';
+      var names  = '&_names=';
+      var end    = '';
+      for (var n=0; n<frame.rcmail.selection.length; n++)
+        {
+        end = n < frame.rcmail.selection.length - 1 ? ',' : '';
+        emails += frame.rcmail.ldap_contact_rows[frame.rcmail.selection[n]].obj.cells[1].innerHTML + end;
+        names  += frame.rcmail.ldap_contact_rows[frame.rcmail.selection[n]].obj.cells[0].innerHTML + end;
+        }
+       
+      frame.location.href = this.env.comm_path + '&_action=save&_framed=1' + emails + names;
+      }
+    return false;
+    }
   
 
 
@@ -1833,7 +2418,7 @@
       name = form.elements['_folder_name'].value;
 
     if (name)
-      this.http_request('create-folder', '_name='+escape(name));
+      this.http_request('create-folder', '_name='+escape(name), true);
     else if (form.elements['_folder_name'])
       form.elements['_folder_name'].focus();
     };
@@ -1843,16 +2428,20 @@
     {
     if (folder)
       {
-      for (var id in this.env.subscriptionrows)
-        if (this.env.subscriptionrows[id]==folder)
-          break;
-          
-      var row;
-      if (id && (row = document.getElementById(id)))
-        row.style.display = 'none';
-
       this.http_request('delete-folder', '_mboxes='+escape(folder));
       }
+    };
+
+
+  this.remove_folder_row = function(folder)
+    {
+    for (var id in this.env.subscriptionrows)
+      if (this.env.subscriptionrows[id]==folder)
+        break;
+
+    var row;
+    if (id && (row = document.getElementById(id)))
+      row.style.display = 'none';    
     };
 
 
@@ -2152,7 +2741,7 @@
 
 
   // create a table row in the message list
-  this.add_message_row = function(uid, cols, flags, attachment)
+  this.add_message_row = function(uid, cols, flags, attachment, attop)
     {
     if (!this.gui_objects.messagelist || !this.gui_objects.messagelist.tBodies[0])
       return false;
@@ -2161,18 +2750,20 @@
     var rowcount = tbody.rows.length;
     var even = rowcount%2;
     
-    this.env.messages[uid] = {replied:flags.replied?1:0,
+    this.env.messages[uid] = {deleted:flags.deleted?1:0,
+                              replied:flags.replied?1:0,
                               unread:flags.unread?1:0};
     
     var row = document.createElement('TR');
     row.id = 'rcmrow'+uid;
-    row.className = 'message '+(even ? 'even' : 'odd')+(flags.unread ? ' unread' : '');
-
+    row.className = 'message '+(even ? 'even' : 'odd')+(flags.unread ? ' unread' : '')+(flags.deleted ? ' deleted' : '');
+    
     if (this.in_selection(uid))
       row.className += ' selected';
 
-    var icon = flags.unread && this.env.unreadicon ? this.env.unreadicon :
-               (flags.replied && this.env.repliedicon ? this.env.repliedicon : this.env.messageicon);
+    var icon = flags.deleted && this.env.deletedicon ? this.env.deletedicon:
+               (flags.unread && this.env.unreadicon ? this.env.unreadicon :
+               (flags.replied && this.env.repliedicon ? this.env.repliedicon : this.env.messageicon));
 
     var col = document.createElement('TD');
     col.className = 'icon';
@@ -2193,7 +2784,11 @@
     col.innerHTML = attachment && this.env.attachmenticon ? '<img src="'+this.env.attachmenticon+'" alt="" border="0" />' : '';
     row.appendChild(col);
     
-    tbody.appendChild(row);
+    if (attop && tbody.rows.length)
+      tbody.insertBefore(row, tbody.firstChild);
+    else
+      tbody.appendChild(row);
+      
     this.init_message_row(row);
     };
 
@@ -2208,37 +2803,58 @@
     this.set_page_buttons();
     };
 
+  // replace content of quota display
+   this.set_quota = function(text)
+     {
+     if (this.gui_objects.quotadisplay)
+       this.gui_objects.quotadisplay.innerHTML = text;
+     };
+			     
 
   // update the mailboxlist
-  this.set_unread_count = function(mbox, count)
+  this.set_unread_count = function(mbox, count, set_title)
     {
     if (!this.gui_objects.mailboxlist)
       return false;
       
-    mbox = String(mbox).toLowerCase().replace(this.mbox_expression, '');
-    
     var item, reg, text_obj;
-    for (var n=0; n<this.gui_objects.mailboxlist.childNodes.length; n++)
+    mbox = String(mbox).toLowerCase().replace(this.mbox_expression, '');
+    item = document.getElementById('rcmbx'+mbox);
+
+    if (item && item.className && item.className.indexOf('mailbox '+mbox)>=0)
       {
-      item = this.gui_objects.mailboxlist.childNodes[n];
+      // set new text
+      text_obj = item.firstChild;
+      reg = /\s+\([0-9]+\)$/i;
 
-      if (item.className && item.className.indexOf('mailbox '+mbox)>=0)
-        {
-        // set new text
-        text_obj = item.firstChild;
-        reg = /\s+\([0-9]+\)$/i;
-
-        if (count && text_obj.innerHTML.match(reg))
-          text_obj.innerHTML = text_obj.innerHTML.replace(reg, ' ('+count+')');
-        else if (count)
-          text_obj.innerHTML += ' ('+count+')';
-        else
-          text_obj.innerHTML = text_obj.innerHTML.replace(reg, '');
+      if (count && text_obj.innerHTML.match(reg))
+        text_obj.innerHTML = text_obj.innerHTML.replace(reg, ' ('+count+')');
+      else if (count)
+        text_obj.innerHTML += ' ('+count+')';
+      else
+        text_obj.innerHTML = text_obj.innerHTML.replace(reg, '');
           
-        // set the right classes
-        this.set_classname(item, 'unread', count>0 ? true : false);        
-        break;
-        }
+      // set the right classes
+      this.set_classname(item, 'unread', count>0 ? true : false);
+      }
+
+    // set unread count to window title
+    reg = /^\([0-9]+\)\s+/i;
+    if (set_title && count && document.title)	
+      {
+      var doc_title = String(document.title);
+
+      if (count && doc_title.match(reg))
+        document.title = doc_title.replace(reg, '('+count+') ');
+      else if (count)
+        document.title = '('+count+') '+doc_title;
+      else
+        document.title = doc_title.replace(reg, '');
+      }
+    // remove unread count from window title
+    else if (document.title)
+      {
+      document.title = document.title.replace(reg, '');
       }
     };
 
@@ -2345,18 +2961,29 @@
   /********************************************************/
 
 
-  // send a http request to the server
-  this.http_request = function(action, querystring)
+  this.http_sockets = new Array();
+  
+  // find a non-busy socket or create a new one
+  this.get_request_obj = function()
     {
-    if (window.XMLHttpRequest)
-      this.request_obj = new XMLHttpRequest();
-    else if (window.ActiveXObject)
-      this.request_obj = new ActiveXObject("Microsoft.XMLHTTP");
-    else
+    for (var n=0; n<this.http_sockets.length; n++)
       {
-      
+      if (!this.http_sockets[n].busy)
+        return this.http_sockets[n];
       }
+    
+    // create a new XMLHTTP object
+    var i = this.http_sockets.length;
+    this.http_sockets[i] = new rcube_http_request();
 
+    return this.http_sockets[i];
+    };
+  
+
+  // send a http request to the server
+  this.http_request = function(action, querystring, lock)
+    {
+    var request_obj = this.get_request_obj();
     querystring += '&_remote=1';
     
     // add timestamp to request url to avoid cacheing problems in Safari
@@ -2364,50 +2991,87 @@
       querystring += '&_ts='+(new Date().getTime());
 
     // send request
-    if (this.request_obj)
+    if (request_obj)
       {
       // prompt('request', this.env.comm_path+'&_action='+escape(action)+'&'+querystring);
       console('HTTP request: '+this.env.comm_path+'&_action='+escape(action)+'&'+querystring);
-      this.set_busy(true);
-      this.request_action = action;
-      this.request_obj.onreadystatechange = function(){ rcube_webmail_client.http_response(); };
-      this.request_obj.open('GET', this.env.comm_path+'&_action='+escape(action)+'&'+querystring);
-      this.request_obj.send(null);
+
+      if (lock)
+        this.set_busy(true);
+
+      request_obj.__lock = lock ? true : false;
+      request_obj.__action = action;
+      request_obj.onerror = function(o){ rcube_webmail_client.http_error(o); };
+      request_obj.oncomplete = function(o){ rcube_webmail_client.http_response(o); };
+      request_obj.GET(this.env.comm_path+'&_action='+escape(action)+'&'+querystring);
       }
     };
 
 
-  // handle http response
-  this.http_response = function()
+  // handle HTTP response
+  this.http_response = function(request_obj)
     {
-    if (this.request_obj.readyState == 4) // || this.request_obj.readyState == 2)
-      {
-      var ctype = this.request_obj.getResponseHeader('Content-Type');
-      if (ctype)
-        ctype = String(ctype).toLowerCase();
+    var ctype = request_obj.get_header('Content-Type');
+    if (ctype)
+      ctype = String(ctype).toLowerCase();
 
+    if (request_obj.__lock)
       this.set_busy(false);
 
-  console(this.request_obj.responseText);
+  console(request_obj.get_text());
 
-      // if we get javascript code from server -> execute it
-      if (this.request_obj.responseText && (ctype=='text/javascript' || ctype=='application/x-javascript'))
-        eval(this.request_obj.responseText);
+    // if we get javascript code from server -> execute it
+    if (request_obj.get_text() && (ctype=='text/javascript' || ctype=='application/x-javascript'))
+      eval(request_obj.get_text());
 
-      // process the response data according to the sent action
-      switch (this.request_action)
-        {
-        case 'delete':
-        case 'moveto':
-          if (this.env.action=='show')
-            this.command('list');
-          break;
-          
-        case 'list':
-          this.enable_command('select-all', 'select-none', this.env.messagecount ? true : false);
-          break;
-        }
+    // process the response data according to the sent action
+    switch (request_obj.__action)
+      {
+      case 'delete':
+      case 'moveto':
+        if (this.env.action=='show')
+          this.command('list');
+        break;
+
+      case 'list':
+        if (this.env.messagecount)
+          this.enable_command('purge', (this.env.mailbox==this.env.trash_mailbox));
+
+      case 'expunge':
+        this.enable_command('select-all', 'select-none', 'expunge', this.env.messagecount ? true : false);
+        break;      
       }
+
+    request_obj.reset();
+    };
+
+
+  // handle HTTP request errors
+  this.http_error = function(request_obj)
+    {
+    alert('Error sending request: '+request_obj.url);
+
+    if (request_obj.__lock)
+      this.set_busy(false);
+
+    request_obj.reset();
+    request_obj.__lock = false;
+    };
+
+
+  // use an image to send a keep-alive siganl to the server
+  this.send_keep_alive = function()
+    {
+    var d = new Date();
+    this.http_request('keep-alive', '_t='+d.getTime());
+    };
+
+    
+  // send periodic request to check for recent messages
+  this.check_for_recent = function()
+    {
+    var d = new Date();
+    this.http_request('check-recent', '_t='+d.getTime());
     };
 
 
@@ -2429,6 +3093,8 @@
     };
 
 
+/* deprecated methods
+
   // check if Shift-key is pressed on event
   this.check_shiftkey = function(e)
     {
@@ -2442,6 +3108,48 @@
     else
       return false;
     }
+
+  // check if Shift-key is pressed on event
+  this.check_ctrlkey = function(e)
+    {
+    if(!e && window.event)
+      e = window.event;
+
+    if(bw.linux && bw.ns4 && e.modifiers)
+      return true;
+   else if (bw.mac)
+       return this.check_shiftkey(e);
+    else if((bw.ns4 && e.modifiers & Event.CTRL_MASK) || (e && e.ctrlKey))
+      return true;
+    else
+      return false;
+    }
+*/
+
+  // returns modifier key (constants defined at top of file)
+  this.get_modifier = function(e)
+    {
+    var opcode = 0;
+    e = e || window.event;
+
+    if (bw.mac && e)
+      {
+      opcode += (e.metaKey && CONTROL_KEY) + (e.shiftKey && SHIFT_KEY);
+      return opcode;    
+      }
+    if (e)
+      {
+      opcode += (e.ctrlKey && CONTROL_KEY) + (e.shiftKey && SHIFT_KEY);
+      return opcode;
+      }
+    if (e.cancelBubble)
+      {
+      e.cancelBubble = true;
+      e.returnValue = false;
+      }
+    else if (e.preventDefault)
+      e.preventDefault();
+  }
 
 
   this.get_mouse_pos = function(e)
@@ -2524,6 +3232,117 @@
 
 
 
+// class for HTTP requests
+function rcube_http_request()
+  {
+  this.url = '';
+  this.busy = false;
+  this.xmlhttp = null;
+
+
+  // reset object properties
+  this.reset = function()
+    {
+    // set unassigned event handlers
+    this.onloading = function(){ };
+    this.onloaded = function(){ };
+    this.oninteractive = function(){ };
+    this.oncomplete = function(){ };
+    this.onabort = function(){ };
+    this.onerror = function(){ };
+    
+    this.url = '';
+    this.busy = false;
+    this.xmlhttp = null;
+    }
+
+
+  // create HTMLHTTP object
+  this.build = function()
+    {
+    if (window.XMLHttpRequest)
+      this.xmlhttp = new XMLHttpRequest();
+    else if (window.ActiveXObject)
+      this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
+    else
+      {
+      
+      }
+    }
+
+  // sedn GET request
+  this.GET = function(url)
+    {
+    this.build();
+
+    if (!this.xmlhttp)
+      {
+      this.onerror(this);
+      return false;
+      }
+
+    var ref = this;
+    this.url = url;
+    this.busy = true;
+
+    this.xmlhttp.onreadystatechange = function(){ ref.xmlhttp_onreadystatechange(); };
+    this.xmlhttp.open('GET', url);
+    this.xmlhttp.send(null);
+    };
+
+
+  this.POST = function(url, a_param)
+    {
+    // not implemented yet
+    };
+
+
+  // handle onreadystatechange event
+  this.xmlhttp_onreadystatechange = function()
+    {
+    if(this.xmlhttp.readyState == 1)
+      this.onloading(this);
+
+    else if(this.xmlhttp.readyState == 2)
+      this.onloaded(this);
+
+    else if(this.xmlhttp.readyState == 3)
+      this.oninteractive(this);
+
+    else if(this.xmlhttp.readyState == 4)
+      {
+      if(this.xmlhttp.status == 0)
+        this.onabort(this);
+      else if(this.xmlhttp.status == 200)
+        this.oncomplete(this);
+      else
+        this.onerror(this);
+        
+      this.busy = false;
+      }
+    }
+
+  // getter method for HTTP headers
+  this.get_header = function(name)
+    {
+    return this.xmlhttp.getResponseHeader(name);
+    };
+
+  this.get_text = function()
+    {
+    return this.xmlhttp.responseText;
+    };
+
+  this.get_xml = function()
+    {
+    return this.xmlhttp.responseXML;
+    };
+
+  this.reset();
+  
+  }  // end class rcube_http_request
+
+
 
 function console(str)
   {

--
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