FIRE sound in Getchat function

[ibakir]

Hi Guys i want to show a beep! sound after a message come to me when the windows would be minimized....i think i shall put a statement after if(r.chats.length){
here's the total script:

// This method requests the latest chats
    // (since lastID), and adds them to the page.

    getChats : function(callback){
        $.tzGET('getChats',{lastID: chat.data.lastID},function(r){

            for(var i=0;i<r.chats.length;i++){
                chat.addChatLine(r.chats[i]);
            }

            if(r.chats.length){
                chat.data.noActivity = 0;
                chat.data.lastID = r.chats[i-1].id;
            }
            else{
                // If no chats were received, increment
                // the noActivity counter.

                chat.data.noActivity++;
            }

            if(!chat.data.lastID){
                chat.data.jspAPI.getContentPane().html('<p class="noChats">No chats yet</p>');
            }

            // Setting a timeout for the next request,
            // depending on the chat activity:

            var nextRequest = 1000;

            // 2 seconds
            if(chat.data.noActivity > 3){
                nextRequest = 2000;
            }

            if(chat.data.noActivity > 10){
                nextRequest = 5000;
            }

            // 15 seconds
            if(chat.data.noActivity > 20){
                nextRequest = 15000;
            }

            setTimeout(callback,nextRequest);
        });
    },

    // Requesting a list with all the users.

    getUsers : function(callback){
        $.tzGET('getUsers',function(r){

            var users = [];

            for(var i=0; i< r.users.length;i++){
                if(r.users[i]){
                    users.push(chat.render('user',r.users[i]));
                }
            }

            var message = '';

            if(r.total<1){
                message = 'No one is online';
            }
            else {
                message = r.total+' '+(r.total == 1 ? 'person':'people')+' online';
            }

            users.push('<p class="count">'+message+'</p>');

            $('#chatUsers').html(users.join(''));

            setTimeout(callback,15000);
        });
    },

i hope i can find the right statement for that, it would be nice from you.

Thanks