function change(id_name){
document.getElementById(id_name).style.backgroundColor = "#5a0155";

}

function change_back(id_name){
document.getElementById(id_name).style.backgroundColor = "transparent";
}
  $(function() {
            $("#1, #2, #3").lavaLamp({
                fx: "backout", 
                speed: 700,
                click: function(event, menuItem) {
                    return true;
                }
            });
        });