function change_all_off(){
document.getElementById("electric").className = "electric";
document.getElementById("electric-text").className = "electric-text";
document.getElementById("gas").className = "gas";
document.getElementById("gas-text").className = "gas-text";
document.getElementById("hsi").className = "hsi";
document.getElementById("hsi-text").className = "hsi-text";
document.getElementById("tv").className = "tv";
document.getElementById("tv-text").className = "tv-text";
document.getElementById("news").className = "news";
document.getElementById("news-text").className = "news-text";
document.getElementById("coaf").className = "coaf";
document.getElementById("coaf-text").className = "coaf-text";
document.getElementById("phone").className = "phone";
document.getElementById("phone-text").className = "phone-text";
document.getElementById("appliance").className = "appliance";
document.getElementById("appliance-text").className = "appliance-text";
}
function change_electric_on(){
document.getElementById("electric").className = "electric-on";
document.getElementById("electric-text").className = "electric-text-on";
document.getElementById("gas").className = "gas";
document.getElementById("gas-text").className = "gas-text";
document.getElementById("hsi").className = "hsi";
document.getElementById("hsi-text").className = "hsi-text";
document.getElementById("tv").className = "tv";
document.getElementById("tv-text").className = "tv-text";
document.getElementById("news").className = "news";
document.getElementById("news-text").className = "news-text";
document.getElementById("coaf").className = "coaf";
document.getElementById("coaf-text").className = "coaf-text";
document.getElementById("phone").className = "phone";
document.getElementById("phone-text").className = "phone-text";
document.getElementById("appliance").className = "appliance";
document.getElementById("appliance-text").className = "appliance-text";
}
function change_gas_on(){
document.getElementById("electric").className = "electric";
document.getElementById("electric-text").className = "electric-text";
document.getElementById("gas").className = "gas-on";
document.getElementById("gas-text").className = "gas-text-on";
document.getElementById("hsi").className = "hsi";
document.getElementById("hsi-text").className = "hsi-text";
document.getElementById("tv").className = "tv";
document.getElementById("tv-text").className = "tv-text";
document.getElementById("news").className = "news";
document.getElementById("news-text").className = "news-text";
document.getElementById("coaf").className = "coaf";
document.getElementById("coaf-text").className = "coaf-text";
document.getElementById("phone").className = "phone";
document.getElementById("phone-text").className = "phone-text";
document.getElementById("appliance").className = "appliance";
document.getElementById("appliance-text").className = "appliance-text";
}
function change_hsi_on(){
document.getElementById("electric").className = "electric";
document.getElementById("electric-text").className = "electric-text";
document.getElementById("gas").className = "gas";
document.getElementById("gas-text").className = "gas-text";
document.getElementById("hsi").className = "hsi-on";
document.getElementById("hsi-text").className = "hsi-text-on";
document.getElementById("tv").className = "tv";
document.getElementById("tv-text").className = "tv-text";
document.getElementById("news").className = "news";
document.getElementById("news-text").className = "news-text";
document.getElementById("coaf").className = "coaf";
document.getElementById("coaf-text").className = "coaf-text";
document.getElementById("phone").className = "phone";
document.getElementById("phone-text").className = "phone-text";
document.getElementById("appliance").className = "appliance";
document.getElementById("appliance-text").className = "appliance-text";
}
function change_tv_on(){
document.getElementById("electric").className = "electric";
document.getElementById("electric-text").className = "electric-text";
document.getElementById("gas").className = "gas";
document.getElementById("gas-text").className = "gas-text";
document.getElementById("hsi").className = "hsi";
document.getElementById("hsi-text").className = "hsi-text";
document.getElementById("tv").className = "tv-on";
document.getElementById("tv-text").className = "tv-text-on";
document.getElementById("news").className = "news";
document.getElementById("news-text").className = "news-text";
document.getElementById("coaf").className = "coaf";
document.getElementById("coaf-text").className = "coaf-text";
document.getElementById("phone").className = "phone";
document.getElementById("phone-text").className = "phone-text";
document.getElementById("appliance").className = "appliance";
document.getElementById("appliance-text").className = "appliance-text";
}
function change_news_on(){
document.getElementById("electric").className = "electric";
document.getElementById("electric-text").className = "electric-text";
document.getElementById("gas").className = "gas";
document.getElementById("gas-text").className = "gas-text";
document.getElementById("hsi").className = "hsi";
document.getElementById("hsi-text").className = "hsi-text";
document.getElementById("tv").className = "tv";
document.getElementById("tv-text").className = "tv-text";
document.getElementById("news").className = "news-on";
document.getElementById("news-text").className = "news-text-on";
document.getElementById("coaf").className = "coaf";
document.getElementById("coaf-text").className = "coaf-text";
document.getElementById("phone").className = "phone";
document.getElementById("phone-text").className = "phone-text";
document.getElementById("appliance").className = "appliance";
document.getElementById("appliance-text").className = "appliance-text";
}
function change_coaf_on(){
document.getElementById("electric").className = "electric";
document.getElementById("electric-text").className = "electric-text";
document.getElementById("gas").className = "gas";
document.getElementById("gas-text").className = "gas-text";
document.getElementById("hsi").className = "hsi";
document.getElementById("hsi-text").className = "hsi-text";
document.getElementById("tv").className = "tv";
document.getElementById("tv-text").className = "tv-text";
document.getElementById("news").className = "news";
document.getElementById("news-text").className = "news-text";
document.getElementById("coaf").className = "coaf-on";
document.getElementById("coaf-text").className = "coaf-text-on";
document.getElementById("phone").className = "phone";
document.getElementById("phone-text").className = "phone-text";
document.getElementById("appliance").className = "appliance";
document.getElementById("appliance-text").className = "appliance-text";
}
function change_phone_on(){
document.getElementById("electric").className = "electric";
document.getElementById("electric-text").className = "electric-text";
document.getElementById("gas").className = "gas";
document.getElementById("gas-text").className = "gas-text";
document.getElementById("hsi").className = "hsi";
document.getElementById("hsi-text").className = "hsi-text";
document.getElementById("tv").className = "tv";
document.getElementById("tv-text").className = "tv-text";
document.getElementById("news").className = "news";
document.getElementById("news-text").className = "news-text";
document.getElementById("coaf").className = "coaf";
document.getElementById("coaf-text").className = "coaf-text";
document.getElementById("phone").className = "phone-on";
document.getElementById("phone-text").className = "phone-text-on";
document.getElementById("appliance").className = "appliance";
document.getElementById("appliance-text").className = "appliance-text";
}
function change_appliance_on(){
document.getElementById("electric").className = "electric";
document.getElementById("electric-text").className = "electric-text";
document.getElementById("gas").className = "gas";
document.getElementById("gas-text").className = "gas-text";
document.getElementById("hsi").className = "hsi";
document.getElementById("hsi-text").className = "hsi-text";
document.getElementById("tv").className = "tv";
document.getElementById("tv-text").className = "tv-text";
document.getElementById("news").className = "news";
document.getElementById("news-text").className = "news-text";
document.getElementById("coaf").className = "coaf";
document.getElementById("coaf-text").className = "coaf-text";
document.getElementById("phone").className = "phone";
document.getElementById("phone-text").className = "phone-text";
document.getElementById("appliance").className = "appliance-on";
document.getElementById("appliance-text").className = "appliance-text-on";
}