[JS]Hoe laden controleren?

Event.observe(window, 'load', function () {

    Player = new play();
    var radio = new SWFObject('gamedata/player.swf', 'mpl', '1', '1', '9');
    radio.addParam('allowfullscreen', 'false');
    radio.addParam('allowscriptaccess', 'always');
    radio.addParam('wmode', 'opaque');
    radio.addVariable('duration', '99999');
    radio.addVariable('file', 'http://server4.**********:8002/;stream.nsv');
    radio.addVariable('provider', 'sound');
    radio.addVariable('volume', '100');
    radio.addVariable('autostart', 'true');
    radio.addVariable('playerready', 'playerr');
    radio.write('player');
    
    volSlide = new Control.Slider($('volume_bit'), $('volume_track'), {
        sliderValue: 0.5,
        onSlide: function (v) {
            v = v * 100;
            RadioPlayer.sendEvent('volume', v);
        },
        
        onChange: function (v) {
            v = v * 100;
            if (muted && v > 1) {
                muted = false;
            } else if (!muted && v < 1) {
                muted = true;
            }
            
        }
        
    });
    
    volSlide.setValue(0.5);
    
});

var RadioPlayer;
var muted = false;

function playerr(obj) {
    RadioPlayer = document.getElementById(obj['id']);
    
};