deobsfuscated http://becausetheinter.net/audio.js * Unrot13d comment on top * Spaced. * Replaced array access of encoded keywords with their values in place. * Switched from array-access to dot syntax. * Gave callable name to decode_str. * Assigned mnemonic names to other __0x variables

deobsfuscated-bti-audio.js

//Secret track

// -- removed _0xe7d4 keywords array

function playAudio(track_id) {
    var audio_object = window.audioObjects[track_id];
    if (audio_object) {
        if (!audio_object.requestPlaying) {
            audio_object.play();
        } else {
            audio_object.stop();
        };
    };
};

function restartAudio(track_id) {
    var audio_object = window.audioObjects[track_id];
    if (audio_object) {
        audio_object.restart();
    };
};

var decode_str = function (str) {
    return (str ? str : this).split('').map(function (track_id) {
        if (!track_id.match(/[A-za-z]/)) {
            return track_id;
        };
        c = Math.floor(track_id.charCodeAt(0) / 97);
        k = (track_id.toLowerCase().charCodeAt(0) - 83) % 26 || 26;
        return String.fromCharCode(k + (c == 0 ? 64 : 96));
    }).join('');
};

String.prototype['q4x'] = String.prototype['le3'] = String.prototype['a3q'] = decode_str;

var audioObject = function (id, encoded_filename, length) {
    this.audio = null;
    this.src = "http://static.becausetheinter.net/script/" + decode_str(encoded_filename) + ".mp3";
    this.altsrc = "http://static.becausetheinter.net/script/" + decode_str(encoded_filename) + '.ogg';
    this.duration = '--:-- / --:--';
    this.requestPlaying = false;
    this.id = id;
    this.maxDuration = length;
    var self = this;
    this.play = function () {
        if (window.audioObjectPlaying != null) {
            window.audioObjectPlaying.stop();
        };
        if (self.audio == null) {
            self.createAudioHooks();
        };
        self.audio.src = self.src;
        if (!(typeof self.audio.canPlayType === 'function' && self.audio.canPlayType('audio/mpeg') !== '')) {
            self.audio.src = self.altsrc;
        };
        self.audio.play();
        self.requestPlaying = true;
        window.audioObjectPlaying = self;
        self.updateDisplay();
    };
    this.restart = function () {
        self.end();
        self.play();
    };
    this.isPlaying = function () {
        return !self.audio.paused;
    };
    this.secondsToTime = function (secs) {
        if (!isFinite(secs)) {
            return '--:--';
        };
        var mins = Math.floor(secs / 60);
        var secs_in_min = Math.floor(secs) - (mins * 60);
        if (mins < 10) {
            mins = '0' + mins;
        };
        if (secs_in_min < 10) {
            secs_in_min = '0' + secs_in_min;
        };
        return mins + ':' + secs_in_min;
    };
    this.onDurationChange = function () {
        var current_time_display = '--:--';
        if (self.audio != null) {
            if (self.audio.currentTime) {
                current_time_display = self.secondsToTime(self.audio.currentTime);
            };
            var length_display;
            if (self.maxDuration) {
                if (self.maxDuration - self.audio.currentTime < 1) {
                    self.end();
                };
                length_display = self.secondsToTime(self.maxDuration);
            } else {
                length_display = self.secondsToTime(self.audio.duration);
            };
            self.duration = current_time_display + ' / ' + length_display;
            self.updateDisplay();
        };
    };
    this.stop = function () {
        if (self.audio != null) {
            self.audio.pause();
            self.requestPlaying = false;
            self.updateDisplay();
        };
        self.updateDisplay();
    };
    this.createAudioHooks = function (unused_arg) {
        self.audio = new Audio(self.src);
        if (!(typeof self.audio.canPlayType === 'function' && self.audio.canPlayType('audio/mpeg') !== '')) {
            self.audio.src = self.altsrc;
        };
        self.audio.addEventListener('durationchange', self.onDurationChange);
        self.audio.addEventListener('timeupdate', self.onDurationChange);
        self.audio.addEventListener('pause', self.onDurationChange);
        self.audio.addEventListener('ended', self.end);
    };
    this.end = function () {
        self.stop();
        self.audio.currentTime = 0;
        self.onDurationChange();
        self.stop();
        self.audio.src = '';
    };
    this.updateDisplay = function () {
        var play_btn = document.getElementById(self.id + '_PL');
        var animation = document.getElementById(self.id + '_ANIM');
        var progress = document.getElementById(self.id + '_PROG');
        console.log(self.audio.networkState);
        if (self.isPlaying()) {
            if (play_btn) {
                play_btn.src = 'http://static.becausetheinter.net/script/pause.gif';
                progress.innerHTML = self.duration;
                animation.src = 'http://static.becausetheinter.net/script/player.gif';
            };
        } else {
            if (play_btn) {
                if (self.requestPlaying) {
                    play_btn.src = 'http://static.becausetheinter.net/script/pause.gif';
                } else {
                    play_btn.src = 'http://static.becausetheinter.net/script/start.gif';
                };
                progress.innerHTML = self.duration;
                animation.src = 'http://static.becausetheinter.net/script/playerstop.gif';
            };
        };
    };
    if (window.audioObjects === undefined) {
        window.audioObjects = new Object();
        window.audioObjectPlaying = null;
    };
    window.audioObjects[id] = this;
};

function generatePlayer(track_id, encoded_title, encoded_filename, maxDuration) {
    var html = '';
    html += '<div class="player" id="' + track_id + '">';
    html += '<div class="player_innerplayer">';
    html += '<img class="player_playbutton" id="' + track_id + '_PL" src="http://static.becausetheinter.net/script/start.gif" onclick="playAudio('' + track_id + '')">';
    html += '<div class="player_meta">';
    html += '<span class="player_trackname">' + decode_str(encoded_title) + '</span><br/>';
    html += '<span class="player_duration" id="' + track_id + '_PROG">--:-- / --:--</span></div>';
    html += '<img class="player_resetbutton" id="' + track_id + '_RESET" src="http://static.becausetheinter.net/script/replay.png"  onclick="restartAudio('' + track_id + '')">';
    html += '<img class="player_animation" id="' + track_id + '_ANIM" src="http://static.becausetheinter.net/script/playerstop.gif"></div>';
    if (maxDuration !== undefined) {
        html += '<script>new audioObject("' + track_id + '","' + encoded_filename + '",' + maxDuration + ');</script></div>';
    } else {
        html += '<script>new audioObject("' + track_id + '","' + encoded_filename + '");</script></div>';
    };
    return html;
};

see also audio data for known tracks https://docs.google.com/spreadsheet/ccc?key=0Ai1la9cesZqmdEZDUWZUakxDVHpSZkUwckI1Z0JNUVE&usp=sharing

In original all local variables are named '_0x1bf6x' followed by a number that increments (not quite monotonically) across the file ranging from 2 to 18, though some values are perhaps omitted... could be significant?

Are you any good with PHP and mySQL?
I was trying to think if there is anyway to trick the static.becausetheinter.net database into giving access to the main users root file and see if there is a track 9 1/2 at all