function call_functions() {
    music();
    showhide('sound_on');
}


function music(){
music=window.open('playa.html','playa','toolbar=no,top=30000,left=0,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=1,copyhistory=yes,width=1,height=1');setTimeout("music.blur()",0)
}


var state = 'hidden';
function showhide(layer_ref) {
    if (state == 'visible') {
        state = 'hidden';
    }
    else {
        state = 'visible';
    }
    if (document.all) { //IS IE 4 or 5 (or 6 beta)
        eval( "document.all." + layer_ref + ".style.visibility = state");
    }
    if (document.layers) { //IS NETSCAPE 4 or below
        document.layers[layer_ref].visibility = state;
    }
    if (document.getElementById && !document.all) {
        maxwell_smart = document.getElementById(layer_ref);
        maxwell_smart.style.visibility = state;
    }
}