özetle şu şekilde fizy deki olay javascript in document.location elementiyle alıyorlar url i http://fizy.com/#s/1490bs gibi sonra regex le parse ediyorlar.
tabii anlayana

if (document.location.hash.length>1) {
    var re =  new RegExp(/\/s\//);
    var qre =  new RegExp(/\/q\//);
    if ((document.location.pathname).match(re) || (document.location.pathname).match(qre)) {
        document.location.href='/' + document.location.hash;
    } else { 
        var re =  new RegExp(/#s\//);
        var qre =  new RegExp(/#q\//);
        if ((document.location.hash).match(re) || (document.location.hash).match(qre)) {
            if( (document.location.hash).match(re) ) var playIt=document.location.hash.substr(3);
            if( (document.location.hash).match(qre) ) var searchIt=document.location.hash.substr(3);
        }else{
            document.location.href= '/' + document.location.hash.substr(1);
        }
    }
}




            case 'ready':
                fizy.player('playingReady');
                if ($('video')) $('video').set('spectrum',{'spectrumcolor':'cccccc'});
                if ($('dvideo')) $('dvideo').set('spectrum',{'spectrumcolor':'cccccc'});
                fizy.autoplay = 1;
                if( song.ID ) 
                    fizy.player('play',song);
                else if(typeof playIt != "undefined" ){
                    fizy.player('playById',playIt);
                }
                fizy.player('hotkeys');
            break;




            case 'play':
                if(fizy.playReq) fizy.playReq.cancel();
                if(!fizy.playing)
                    repeats = false;
                else {
                    if ( fizy.playing.ID == a.ID )
                        repeats = true;
                    else
                        repeats = false;
                }
                if ( ! repeats ) {
                    fizy.deactivateListItems();
                    fizy.loadingListItem( a.ID );
                }
                fizy.playReq = new Request.JSON({
                    onCancel: function(s){
                        fizy.player('playingReady');
                        fizy.deactivateListItems();
                    },
                    onFailure:function(s){
                        setTimeout("fizy.player('next');", 3000);
                    },onComplete: function(s){
                        if(s){
                            if(typeof s != 'object') {
                                setTimeout("fizy.player('replay');", 3000);
                            }
                            if (s.error == 'noCountry') {
                                fizy.alert(lang.noCountry);
                                fizy.player('playingReady');
                            } else {
                                if ( ! repeats ) {
                                    fizy.activateListItem( a.ID );
                                }
                                fizy.playing = s;
                                if($('footer').hasClass('close')&&!fizy.IE){
                                    $('footer').fade('hide');
                                    $('footer').removeClass('close');
                                }
                                if ($('fzPlayer')) $('fzPlayer').removeClass('close');
                                if ($('fzdPlayer')) $('fzdPlayer').removeClass('close');
                                $('footer').fade('in');
                                //playing icon
                                if($('songs')) $('songs').getElements('div.pSong').each(function(s){ s.removeClass('playing'); });
                                if ((fizy.playing) && ($('song'+fizy.playing.ID)))  $('song'+fizy.playing.ID).getParent().addClass('playing');
                                if($('results')) $('results').getElements('div.item').each(function(s){ s.removeClass('playing'); });
                                if ((fizy.playing) && ($('item'+fizy.playing.ID)))  $('item'+fizy.playing.ID).addClass('playing');
                                // playlist youtube item check
                                if(s.provider=='youtube' && !fizy.yt  ) {
                                    fizy.player('playingReady');
                                    fizy.player('next');
                                    return true;
                                }else if(s.provider=='metacafe' && !fizy.mt){
                                    fizy.player('playingReady');
                                    fizy.player('next');
                                    return true;
                                }
                                if ((!fizy.access) && (s.provider == 'youtube') && (!$('fzPlayer').hasClass('video'))) {
                                    $('fzPlayer').toggleClass('video');
                                }
                                if(fizy.html5){
                                    if(s.type == "mp3" && !(s.provider == "muyap" || s.provider == "sony")){
                                        jQuery("#jquery_jplayer").jPlayer( "setFile", s.source ).jPlayer("play");
                                    }else{
                                        fizy.player('next');
                                        return true;
                                    }
                                }
                                try {
                                    if ($('video')) $('video').set('load',s);
                                } catch ( e ) {
                                    // console.log( e );
                                }
                                try {
                                    if ($('dvideo')) $('dvideo').set('load',s);
                                } catch ( e ) {
                                    // console.log( "2" + e );
                                }
                                if( fizy.nonPlayedSongs ){
                                    var idx = fizy.nonPlayedSongs.indexOf(fizy.playing.ID); // Find the index
                                    if(idx!=-1) fizy.nonPlayedSongs.splice(idx, 1); // Remove it if really found!
                                }
                                $('playingSong').set('html',lang.nowPlaying + s.title);
                                document.title = unescape(s.title.replace('&', '&').replace('"', '"').replace(''', '\'')) + ' / fizy.';
                                $('provider').set('src','/themes/'+fizy.theme+'/images/providers/'+s.provider+'.gif?v=5');
                                $('provider').setStyle("cursor", "auto");
                                $('provider').removeEvents('click');
                                fizy.setSlider(a);
                                if(s.provider == 'soundcloud'){    
                                    $('provider').setStyle("cursor", "pointer");
                                    $('provider').addEvent('click', function(){window.open ('/fizy::goToPage::'+s.ID);});
                                }else if(s.provider == "youtube" && !fizy.video){
                                    fizy.player('video');
                                }else if(s.provider != "youtube" && fizy.video){
                                    fizy.player('video');
                                }
                                if($('ad_120x600')){
                                    fizy.advertisement.load();
                                }
                                fizy.tempTimer && clearTimeout(fizy.tempTimer);
                                fizy.tempTimer = null;
                                fizy.tempTimer = setTimeout("fizy.player('nowPlaying');",30000);
                            }
                        } else {    
                            fizy.deactivateListItems();
                            fizy.player('playingReady');
                        }
                   
                    }
                }).post('/fizy::getSong','SID='+a.ID+'&isPlaylist='+a.isPlaylist);
                if (!fizy.autoplay) {
                    fizy.adHit();
                    if (pageTracker) pageTracker._trackPageview('/fizy::getSong::' + a.ID);
                } else fizy.autoplay = 0;
                 
            break;