source: trunk/expressoMail1_2/js/common_functions.js @ 813

// BEGIN: FUNCTION RESIZE WINDOW
var _showBar = showBar;
var _hideBar = hideBar;

function __showBar(){
        _showBar();
        resizeWindow();
}

function __hideBar(){
        _hideBar();
        resizeWindow();
}
showBar = __showBar;
hideBar = __hideBar;

window.onresize = resizeWindow;

function config_events(pObj, pEvent, pHandler)
{
    if( typeof pObj == 'object')
    {
        if( pEvent.substring(0, 2) == 'on')
            pEvent = pEvent.substring(2, pEvent.length);

        if ( pObj.addEventListener )
            pObj.addEventListener(pEvent, pHandler, false);
        else if( pObj.attachEvent )
            pObj.attachEvent('on' + pEvent, pHandler );
    }
}

function resizeWindow(){

        var bar = Element("toolbar");
        var offset = 0;
        if(bar.style.visibility != 'hidden') 
                offset = (bar.offsetHeight ? bar.offsetHeight :  bar.clientHeight);     

        var screenHeight = document.body.clientHeight ? document.body.clientHeight : document.body.offsetHeight;
        var defaultHeight = screenHeight - offset;

        if(typeof(BordersArray) != 'undefined') {
                for(var i = 1; BordersArray.length > 1 && i < BordersArray.length;i++) {
                        var div_scroll = Element("div_message_scroll_"+BordersArray[i].sequence);
                        var div = Element("content_id_"+BordersArray[i].sequence);

                        // This comented code cause Firefox to stuck some request 
                        if(div)
//                              div.setAttribute("style","height: "+parseInt(defaultHeight - 90)+"px;");
                                div.style.height = defaultHeight - 90;
                        if(div_scroll)
                                div_scroll.setAttribute("style","height: "+parseInt(defaultHeight - 130)+"px;");
//                              div_scroll.style.height = defaultHeight - 130;
                }
        }

        if(Element('content_folders'))
                Element('content_folders').style.height = defaultHeight - (is_ie ? 165 : 150);
        if(Element("divScrollMain_"+numBox))
                Element("divScrollMain_"+numBox).style.height   = defaultHeight - (is_ie ? 111 : 110);
}
// END: FUNCTION RESIZE WINDOW

var _beforeunload_ = window.onbeforeunload;

window.onbeforeunload = function()
{
        return unloadMess();
}

function unloadMess(){
        var mess = get_lang("Your message has not been sent and will be discarted.");
        for(var i = 0; i < BordersArray.length;i++) {
                var body = Element('body_'+BordersArray[i].sequence);
                if (body && body.contentWindow && body.contentWindow.document.designMode.toLowerCase() == 'on') {
                        return mess;
                }
        }
}

// Translate words and phrases using user language from eGroupware.
function get_lang(_key) {
        var key = _key.toLowerCase();
        if(array_lang[key])
                var _value = array_lang[key];
        else
                var _value = _key+"*";

        if(arguments.length > 1)
                for(j = 1; typeof(arguments[j]) != 'undefined'; j++)
                        _value = _value.replace("%"+j,arguments[j]);
        return _value;
}

// Make decimal round, using in size message
function round(value, decimal){
        var return_value = Math.round( value * Math.pow( 10 , decimal ) ) / Math.pow( 10 , decimal );
        return( return_value );
}

// Change the class of message.
// In refresh, the flags UnRead and UnSeen don't exist anymore. 
function set_msg_as_read(msg_number, selected){
        tr_message = Element(msg_number);
        if (exist_className(tr_message, 'tr_msg_unread'))
                decrement_folder_unseen();
        remove_className(tr_message, 'tr_msg_unread');
        remove_className(tr_message, 'selected_msg');
        add_className(tr_message, 'tr_msg_read');
        purgeCache();
        return true;
}

function msg_is_read(msg_number, selected){
        tr_message = Element(msg_number);
        if (tr_message && LTrim(tr_message.className).match('tr_msg_unread'))
                return false;
        else
                return true;
}

function set_msg_as_unread(msg_number){
        tr_message = Element(msg_number);
        if (exist_className(tr_message, 'tr_msg_read'))
                increment_folder_unseen();
        remove_className(tr_message, 'tr_msg_read');
        remove_className(tr_message, 'selected_msg');
        add_className(tr_message, 'tr_msg_unread');
}

function set_msg_as_flagged(msg_number){
        var msg = Element(msg_number);
        remove_className(msg, 'selected_msg');
        add_className(msg, 'flagged_msg');
        Element("td_message_important_"+msg_number).innerHTML = '<img src=templates/default/images/important.gif title=Importante!>';
}

function set_msg_as_unflagged(msg_number){
        var msg = Element(msg_number);
        remove_className(msg, 'selected_msg');
        remove_className(msg, 'flagged_msg');
        Element("td_message_important_"+msg_number).innerHTML = '';
}

function get_current_folder(){
        return current_folder;
}

// Kill current box (folder or page).
function kill_current_box(){
        var box = document.getElementById("table_box");
        if (box != null)
                box.parentNode.removeChild(box);
        else
                return false;
}

// Kill current paging.
function kill_current_paging(){
        var paging = Element("span_paging");
        if (paging != null)
                paging.parentNode.removeChild(paging);
}

function show_hide_span_paging(ID){
        if ((ID != "0") && Element("span_paging")) 
                Element("span_paging").style.display = 'none';
        else
                if (Element("span_paging"))
                        Element("span_paging").style.display = '';
}

//Get the current number of messages in a page.
function get_messages_number_in_page(){
        //Get element tBody.
        main = document.getElementById("tbody_box");
                
        // Get all TR (messages) in tBody.
        main_list = main.childNodes;
        
        return main_list.length;
}

function download_local_attachment(url) {
        if (div_attachment == null){
                var div_attachment = document.createElement("DIV");
                div_attachment.id="id_div_attachment";
                document.body.appendChild(div_attachment);
        }
        div_attachment.innerHTML="<iframe style='display:none;width:0;height:0' name='attachment' src='"+url+"'></iframe>";
}

function download_attachments(msg_folder, msg_number, idx_file, msg_part, encoding, new_file_name, show_iframe){
        div_attachment = document.getElementById("id_div_attachment");
        var params = '';
        
        if (div_attachment == null){
                var div_attachment = document.createElement("DIV");
                div_attachment.id="id_div_attachment";
                document.body.appendChild(div_attachment);
        }
        if(new_file_name)
                params = "&newfilename="+new_file_name;
        if(encoding)
                params += "&encoding="+encoding;

        div_attachment.innerHTML="<iframe style='display:none;width:0;height:0' name='attachment' src='inc/gotodownload.php?msg_folder="+msg_folder+"&msg_number="+msg_number+"&idx_file="+idx_file+"&msg_part="+msg_part+params+"'></iframe>";
}

function download_all_attachments(msg_folder, msg_number){
        var handler_source = function(data){            
                download_attachments(null, null, data, null,null,'anexos.zip');
        }
        cExecute("$this.exporteml.download_all_attachments",handler_source,"folder="+msg_folder+"&num_msg="+msg_number);
}
//ADD forwarded files
function addForwardedFile(id_border,file_name,link){
        divFiles = document.getElementById("divFiles_"+id_border);

        if (! divFiles)
                return false;
        
        if (divFiles.lastChild)
                var countDivFiles = parseInt(divFiles.lastChild.id.split('_')[2]) + 1;

        if (! countDivFiles)
                var countDivFiles = 1;
        
        divFile = document.createElement('DIV');
        

        if (!is_ie) {
                var inputFile = document.createElement("INPUT");
                
                var tmp_id_border = document.createAttribute('id_border');
                tmp_id_border.value = id_border;
                
                inputFile.setAttributeNode(tmp_id_border);
                inputFile.id = "inputFile_" + id_border + "_" + countDivFiles;
                inputFile.type = 'file';
                inputFile.size = 50;
                inputFile.maxLength = 255;
                inputFile.name = 'file_' + countDivFiles;
                inputFile.style.display = "none";
                divFile.appendChild(inputFile);
        }
        else {
                var inputFile = document.createElement("link");
                
                var tmp_id_border = document.createAttribute('id_border');
                tmp_id_border.value = id_border;
                
                inputFile.setAttributeNode(tmp_id_border);
                inputFile.id = "inputFile_" + id_border + "_" + countDivFiles;
                inputFile.name = 'file_' + countDivFiles;
                
                
                divFile.appendChild(inputFile);         
        }

        var a_tmp = new Array();
        a_tmp[0] = "local_";
        a_tmp[1] = 'file_' + countDivFiles;
        a_tmp[2] = file_name;
        s_tmp = escape(connector.serialize(a_tmp));
        var checkbox = document.createElement("INPUT");
        checkbox.type = "checkbox";
        checkbox.id = "checkbox_"+id_border+"_"+countDivFiles;
        checkbox.name = "local_attachments[]";
        
        checkbox.value = s_tmp;
        divFile.appendChild(checkbox);
        
        var link_attachment = document.createElement("A");
        link_attachment.setAttribute("href", link);
        
        link_attachment.innerHTML = file_name;
        divFile.appendChild(link_attachment);
        
        countDivFiles++;
        divFile.id = "divFile_"+id_border+"_"+countDivFiles;    
        divFiles.appendChild(divFile);

        divFile.id = "divFile_"+id_border+"_"+countDivFiles;    
        divFiles.appendChild(divFile);
        checkbox.checked = true; //Incrível, mas no Internet Explorer o checked só funciona efetivamente se o elemente já estiver renderizado... por isso só aqui eu seleciono ele...
        return inputFile;
}

// Add Input File Dynamically.
function addFile(id_border){
        divFiles = document.getElementById("divFiles_"+id_border);
        if (! divFiles)
                return false;
        
        if (divFiles.lastChild)
                var countDivFiles = parseInt(divFiles.lastChild.id.split('_')[2]) + 1;

        if (! countDivFiles)
                var countDivFiles = 1;
        
        divFile = document.createElement('DIV');
        
        var inputFile = document.createElement("INPUT");
        
        var tmp_id_border = document.createAttribute('id_border');
        tmp_id_border.value = id_border;
        
        inputFile.setAttributeNode(tmp_id_border);
        inputFile.id = "inputFile_"+id_border+"_"+countDivFiles;
        inputFile.onchange = function () {validateFileExtension(this.value, this.id.replace("input","div"), this.getAttribute('id_border'));};
        inputFile.type = 'file';
        inputFile.size = 50;
        inputFile.maxLength = 255;
        inputFile.name='file_'+countDivFiles;
        
        divFile.appendChild(inputFile);
        
        var linkFile = document.createElement("A");
        linkFile.id = "linkFile_"+id_border+"_"+countDivFiles;
        linkFile.href='javascript:void(0)';
        linkFile.onclick=function () {removeFile(this.id.replace("link","div")); return false;};
        linkFile.innerHTML=get_lang("Remove");  
        //divFile.innerHTML += "&nbsp;&nbsp;";
        divFile.appendChild(linkFile);
        divFile.id = "divFile_"+id_border+"_"+countDivFiles;    
        divFiles.appendChild(divFile);

        return inputFile;
}
//      Remove Input File Dynamically.
function removeFile(id){
        var border_id = id.substr(8,1);
        var el = Element(id);
        el.parentNode.removeChild(el);
}

function validateFileExtension(fileName, id, id_border){
        
        var error_flag  = false;

        if ( fileName.indexOf('/') != -1 )
        {
                if (fileName[0] != '/'){ // file name is windows format?
                        var file = fileName.substr(fileName.lastIndexOf('\\') + 1, fileName.length);
                        if ((fileName.indexOf(':\\') != 1) && (fileName.indexOf('\\\\') != 0)) // Is stored in partition or a network file?
                                error_flag = true;      
                }
                else // is Unix
                        var file = fileName.substr(fileName.lastIndexOf('/') + 1, fileName.length);                                             
        }
        else  // is Firefox 3
                var file = fileName;

        var fileExtension = file.split(".");
        fileExtension = fileExtension[(fileExtension.length-1)];
        for(var i=0; i<denyFileExtensions.length; i++)
        {
                if(denyFileExtensions[i] == fileExtension)
                {
                        error_flag = true;
                        break;
                }
                        
        }

        if ( error_flag == true )
        {
                alert(get_lang('File extension forbidden or invalid file') + '.');
                removeFile(id);
                addFile(id_border);
                return false;
        }
        return true;
}

var setTimeout_write_msg = 0;
var old_msg = false;
// Funcao usada para escrever mensagem
// notimeout = True : mensagem nao apaga
function write_msg(msg, notimeout){     
        
        if (setTimeout_write_msg)
                clearTimeout(setTimeout_write_msg);
        
        var msg_div = Element('em_div_write_msg');
        var old_divStatusBar = Element("divStatusBar");

        if(!msg_div) {
                msg_div = document.createElement('DIV');
                msg_div.id = 'em_div_write_msg';
                msg_div.style.height = is_ie ? '17px' : '15px';
                msg_div.style.background = '#f7f8fa';
                msg_div.style.display = 'none';
                old_divStatusBar.parentNode.insertBefore(msg_div,old_divStatusBar);
        }
        
        if( document.getElementById('JabberMessenger'))
                loadscript.adIcon();

        msg_div.innerHTML = '<table bgcolor="#f7f8fa" width="100%" cellspacing="0" cellpadding="0" border="0"><tbody><tr><th width="40%"></th><th noWrap class="action_info_th">'+msg+'</th><th width="40%"></th></tr></tbody></table>';

        old_divStatusBar.style.display = 'none';
        msg_div.style.display = '';     
        // Nao ponha var na frente!! jakjr
        handle_write_msg = function(){
                try{
                        if(!old_msg)
                                clean_msg();
                        else
                                write_msg(old_msg, true);                       
                }
                catch(e){}
        }
        if(notimeout)
                old_msg = msg;
        else
                setTimeout_write_msg = setTimeout("handle_write_msg();", 5000);
}
// Funcao usada para apagar mensagem sem timeout
function clean_msg(){
        old_msg = false;
        var msg_div = Element('em_div_write_msg');
        var old_divStatusBar = Element("divStatusBar");
        if(msg_div)
                msg_div.style.display = 'none';
        old_divStatusBar.style.display = '';    
}

function make_body_reply(body, to, date_day, date_hour){
        to = to.replace("<","&lt;");
        to = to.replace(">","&gt;");
        block_quoted_body ="<br><br>";
        block_quoted_body += get_lang('At %1, %2 hours, %3 wrote:', date_day, date_hour, to);
        block_quoted_body += "<blockquote style=\"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;\">";
        block_quoted_body += body;
        block_quoted_body += "</blockquote>";
        return block_quoted_body;
}

function make_forward_body(body, from, date, subject, to, cc){
        from = from.replace(/</g,"&lt;");
        from = from.replace(/>/g,"&gt;");
        to = to.replace(/</g,"&lt;");
        to = to.replace(/>/g,"&gt;");
        var forward_body = '<BR><BR>---------- ' + get_lang('Forwarded message') + ' ----------<BR>';
        forward_body += get_lang('From') + ': ' + from + '<BR>';
        forward_body += get_lang('Date') + ': ' + date + '<BR>';
        forward_body += get_lang('Subject') + ': ' + subject + '<BR>';
        forward_body += get_lang('To') + ': ' + to+ '<BR>';
        if(cc != undefined){
                cc = cc.replace(/</g,"&lt;");
                cc = cc.replace(/>/g,"&gt;");
                forward_body += get_lang('CC') + ': ' + cc+ '<BR><BR>';
        }
        forward_body += body;
        return forward_body;
}

function emMessageSearch(e,value){
        var     e  = is_ie ? window.event : e;
        if(e.keyCode == 13) {
                search_emails(value);
        }
}

function emQuickSearch(emailList, field, ID){
        var quickSearchKeyBegin;
        var quickSearchKeyEnd;
        
        var handler_emQuickSearch = function(data)
        {
                window_DropDownContacts = Element('tipDiv');
                if (window_DropDownContacts.style.visibility != 'hidden'){
                        window_DropDownContacts.style.visibility = 'hidden';
                }
                
                if ((!data.status) && (data.error == "many results")){
                        alert(get_lang('More than %1 results. Please, try to refine your search.',200));
                        return false;
                }
                        
                if (data.length > 0){
                        if ((field != 'null') && (ID != 'null'))
                        {
                                connector.loadScript("QuickCatalogSearch");
                                QuickCatalogSearch.showList(data, quickSearchKeyBegin, quickSearchKeyEnd);
                        }
                        else
                        {
                                connector.loadScript("QuickSearchUser");
                                QuickSearchUser.showList(data);
                        }
                }
                else
                        alert(get_lang('None result was found.'));
                return true;
        }
        
        if ((field != 'null') && (ID != 'null'))
        {
                Element(field +'_'+ ID).focus(); //It requires for IE.
                var i = getPosition(Element(field +'_'+ ID)); //inputBox.selectionStart;
                var j = --i;

                // Acha o inicio
        while ((j >= 0) && (emailList.charAt(j) != ',')){j--};
            quickSearchKeyBegin = ++j;

            // Acha o final
        while ((i <= emailList.length) && (emailList.charAt(i) != ',')){i++};
            quickSearchKeyEnd = i;

            // A Chave da Pesquisa
        var search_for = trim(emailList.substring(quickSearchKeyBegin, quickSearchKeyEnd));
        }
        else
                var search_for = emailList;
        
        if (search_for.length < 4){
                alert(get_lang('Your search argument must be longer than 4 characters.'));
                return false;
        }
        
        cExecute ("$this.ldap_functions.quicksearch&search_for="+search_for+"&field="+field+"&ID="+ID, handler_emQuickSearch);
}

function folderbox(){
        connector.loadScript("TreeS");
        ttree.make_Window();
}

function filterbox(){
        connector.loadScript("filter");
        connector.loadScript("filters");
        filters.Forms();
}

function sharebox(){
        var handler_imap_getacl = function(data)
        {
                var options = '';
                for (var x in data)
                {
                        options += "<option value='"+data[x].uid+"'>"+data[x].cn+"</option>";
                }
                connector.loadScript("sharemailbox");
                sharemailbox.makeWindow(options);
        }
        cExecute ("$this.imap_functions.getacl", handler_imap_getacl);
}

function preferences_mail(){
        if(preferences.type_signature && preferences.type_signature == 'html') {
                location.href="preferences.php";
        }
        else {
                connector.loadScript("preferences");
                prefe.showList();
        }
}

function search_emails(value){
        connector.loadScript("search");
        EsearchE.showForms(value);
}

function source_msg(id_msg,folder){
        var num_msg = id_msg.substr(0,(id_msg.length - 2));
        var handler_source = function(data){
                download_attachments(null, null, data, null,null,'fonte_da_mensagem.txt');
        }
        cExecute("$this.exporteml.export_msg",handler_source,"folder="+url_decode(folder)+"&msgs_to_export="+num_msg);
}

function url_encode(str){
    var hex_chars = "0123456789ABCDEF"; 
    var noEncode = /^([a-zA-Z0-9\_\-\.])$/; 
    var n, strCode, hex1, hex2, strEncode = ""; 

    for(n = 0; n < str.length; n++) { 
        if (noEncode.test(str.charAt(n))) { 
            strEncode += str.charAt(n); 
        } else { 
            strCode = str.charCodeAt(n); 
            hex1 = hex_chars.charAt(Math.floor(strCode / 16)); 
            hex2 = hex_chars.charAt(strCode % 16); 
            strEncode += "%" + (hex1 + hex2); 
        } 
    } 
    return strEncode; 
}  

function url_decode(str) { 

        var n, strCode, strDecode = ""; 
        for (n = 0; n < str.length; n++) { 
            if (str.charAt(n) == "%") { 
                strCode = str.charAt(n + 1) + str.charAt(n + 2); 
                strDecode += String.fromCharCode(parseInt(strCode, 16)); 
                n += 2; 
            } else { 
                strDecode += str.charAt(n); 
            } 
        } 
        return strDecode; 
}  

function Element (el) {
        return  document.getElementById(el);
}

function getPosition(obj)
{
        if(typeof obj.selectionStart != "undefined")
        {
        return obj.selectionStart;
        }
        else if(document.selection && document.selection.createRange)
        {
                var M = document.selection.createRange();
                try
                {
                        var Lp = M.duplicate();
                        Lp.moveToElementText(obj);
                }
                catch(e)
                {
                        var Lp=obj.createTextRange();
                }
                
                Lp.setEndPoint("EndToStart",M);
                var rb=Lp.text.length;
                
                if(rb > obj.value.length)
                {
                        return -1;
                }
                return rb;
        }
}

function trim(inputString) {
   if (typeof inputString != "string") 
        return inputString;
      
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { 
          retValue = retValue.substring(1, retValue.length);
          ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { 
          retValue = retValue.substring(0, retValue.length-1);
          ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { 
          retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); 
   }
   return retValue; 
}

function increment_folder_unseen(){
        var folder_id = get_current_folder();

        var folder_unseen = Element('dftree_'+folder_id+'_unseen');
        var abas_unseen = Element('new_m').innerHTML;
        abas_unseen = abas_unseen.match( /[0-9]+/);

        if (folder_unseen)
        {
                folder_unseen.innerHTML = (parseInt(folder_unseen.innerHTML) + 1);
        }
        else
        {
                tree_folders.getNodeById(folder_id).alter({caption: tree_folders.getNodeById(folder_id).caption + '<font style=color:red>&nbsp(</font><span id="dftree_'+folder_id+'_unseen" style=color:red>1</span><font style=color:red>)</font>'});
                tree_folders.getNodeById(folder_id)._refresh();
        }
        if (abas_unseen)
        {
                abas_unseen = parseInt(abas_unseen) + 1;
                Element('new_m').innerHTML = '<font style="color:red">' + abas_unseen + '</font>';
        }
        else{
                abas_unseen = Element('new_m').innerHTML;
                abas_unseen = abas_unseen.match( /[0-9]+/);
                abas_unseen = parseInt(abas_unseen) + 1;
                Element('new_m').innerHTML = '<font style="color:red">' + abas_unseen + '</font>';
        }
}
function decrement_folder_unseen(){
        var folder_id = get_current_folder();

        var folder_unseen = Element('dftree_'+folder_id+'_unseen');
        var abas_unseen = Element('new_m').innerHTML;
        abas_unseen = abas_unseen.match( /[0-9]+/);

        if(!folder_unseen || !abas_unseen)
                return;

        if ((folder_unseen) && (parseInt(folder_unseen.innerHTML) > 1))
        {
                folder_unseen.innerHTML = (parseInt(folder_unseen.innerHTML) - 1);
        }
        else if (parseInt(folder_unseen.innerHTML) <= 1)
        {
                var tmp_folder_name = tree_folders.getNodeById(folder_id).caption.split('<');
                var folder_name = tmp_folder_name[0];
                tree_folders.getNodeById(folder_id).alter({caption: folder_name});
                tree_folders.getNodeById(folder_id)._refresh();
        }
        if ((abas_unseen) && (parseInt(abas_unseen) > 1))
        {
                abas_unseen = (parseInt(abas_unseen) - 1);
                Element('new_m').innerHTML = '<font style="color:red">' + abas_unseen + '</font>';
        }
        else if (parseInt(abas_unseen) <= 1)
        {
                Element('new_m').innerHTML = '0';
        }
}

function LTrim(value){
        var w_space = String.fromCharCode(32);
        var strTemp = "";
        var iTemp = 0;

        if(v_length < 1)
                return "";

        var v_length = value ? value.length : 0;
        
        while(iTemp < v_length){
                if(value && value.charAt(iTemp) != w_space){
                        strTemp = value.substring(iTemp,v_length);
                        break;
                }
                iTemp++;
        }
        return strTemp;
}

//changes MENU background color.
function set_menu_bg(menu)
{
        menu.style.backgroundColor = 'white';
        menu.style.border = '1px solid black';
}
//changes MENU background color.
function unset_menu_bg(menu)
{
        menu.style.backgroundColor = '';
        menu.style.border = '1px solid #f7f7f7';
}

function array_search(needle, haystack) {
        var n = haystack.length;
        for (var i=0; i<n; i++) {
                if (haystack[i]==needle) {
                        return true;
                }
        }
        return false;
}

function lang_folder(fn) {
        if (fn.toUpperCase() == "INBOX") return get_lang("Inbox");
        if (special_folders[fn] && typeof(special_folders[fn]) == 'string') {
                return get_lang(special_folders[fn]);
        }
        return fn;
}

function add_className(obj, className){
        if (obj && !exist_className(obj, className))
                obj.className = obj.className + ' ' + className;
}

function remove_className(obj, className){
        var re = new RegExp("\\s*"+className);
        if (obj)
                obj.className = obj.className.replace(re, '');
}

function exist_className(obj, className){
        return ( obj && obj.className.indexOf(className) != -1 )
}

function select_all_messages(select)
{
        var main = Element("tbody_box");
        var main_list = main.childNodes;
        var len_main_list = main_list.length;
        
        if (select)
        {
                for (i=0; i<len_main_list; i++)
                {
                        Element("check_box_message_"+main_list[i].id).checked = true;
                        add_className(Element(main_list[i].id), 'selected_msg');
                }
        }
        else
        {
                for (i=0; i<len_main_list; i++)
                {
                        Element("check_box_message_"+main_list[i].id).checked = false;
                        remove_className(Element(main_list[i].id), 'selected_msg');
                }
        }
}