var soundSettings = readCookie("tiim_sound");
if(!window.soundSettings){
    createCookie("tiim_sound","on",24*365*3);
}
soundSettings = readCookie("tiim_sound");

function switchSound(){
    if(soundSettings=="on"){
        soundSettings = "off";
    }else{
        soundSettings = "on";
    }
    createCookie("tiim_sound", soundSettings ,24*365*3);
    displaySpeaker();
    drawFlash();
}

function displaySpeaker(){
    if(window.soundSettings && soundSettings=="on"){
        document.images['speaker'].src= speaker_act;
    }else{
        document.images['speaker'].src= speaker; 
    }
}

function drawFlash(){
    if(soundSettings == "on" && soundflash!=""){
        document.getElementById("soundcontainer").innerHTML = soundflash;
    }else{
        document.getElementById("soundcontainer").innerHTML = "";
    }
}

function createCookie(name,value,hours) {
    if (hours) {
            var date = new Date();
            date.setTime(date.getTime()+(hours*60*60*1000));
            var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
            var c = ca[i];
            while (c.charAt(0)==' ') c = c.substring(1,c.length);
            if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}

function deleteCookie(name) {
    var expires = "Thu, 01-Jan-1970 00:00:01 GMT";
    document.cookie = name+"="+";"+expires+"; path=/";
}