/* Cool Javascript MP3 Playback in Web Page with Custom Controls
Version 1.2b
By Jeff Baker 
Created October 12, 2007
Copyright 2007 by Jeff Baker
www.seabreezecomputers.com
*/
var folder = ''; // if your songs are in a different folder specify it here
// example: var folder = 'music/'; 

var current_song = 0; // start at song 0 in playlist
var fade_out = 0; // 0 = no fade out when stopping or changing songs
// change to fade_out = 1 for fade volume between songs
// or you can use the fade out button

var songs = new Array(); // will hold the playlist of songs
var media; // holds the filename of the current song

function loadsongs()
{
	if (document.getElementById('songlist') != null) {
            var songs_list = document.getElementById('songlist').innerHTML;
            var songs_list_length = songs_list.length;


            // Remove all CRs (13) from IE's textarea
            songs_list = songs_list.replace(/\r/gi, "");
            // first remove first carriage return if there is one
            // IE = CRLF (1310)
            // Firefox + Netscape = LF (10)
            // Safari = LFLF (1010)
            // So the first if statement is for IE and Safari
            // to check for LF on the second character
            if (songs_list.charAt(1) == '\n')
                    songs_list = songs_list.substr(1);
            if (songs_list.charAt(0) == '\n')
                    songs_list = songs_list.substr(1);
            // now remove carriage return from the end of string if there is one
            // first if needed for Safari
            // second if needed for netscape and firefox
            if (songs_list.charAt(songs_list_length-3) == '\n')
                    songs_list = songs_list.substr(0, songs_list_length-3);
            if (songs_list.charAt(songs_list_length-2) == '\n')
                    songs_list = songs_list.substr(0, songs_list_length-2);
            if (songs_list.charAt(songs_list_length-1) == '\n')
                    songs_list = songs_list.substr(0, songs_list_length-1);


            // Note: IE will only split a TEXTAREA by \n. It will not
            // work with a DIV
            songs = songs_list.split('\n');

            media = songs[0]; // media becomes first song in list
        }
	
}  // function loadsongs()



// Make a DIV to hold the player and place it off the screen
// so that we don't see it
document.write('<DIV ID="player"'
+ 'style="position:absolute;left:-1000px;top:-1000px"'
+ '></DIV>');

function load(media)
{  

media = folder + media;

var player = document.getElementById('player'); 

if (detect_browser() == "MSIE" || 
		detect_browser() == "Netscape")
{ 
player.innerHTML = '<object id="sound"' 
+ 'classid="clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6"'
+ 'codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701"'
+ 'standby="Loading Microsoft� Windows� Media Player components..."'  
+ 'type="application/x-oleobject" width="160" height="144">'                
+ '<param name="url" value="'+media+'">'      
+ '<param name="volume" value="100">'            
+ '<param name="PlayCount" value="1">'            
+ '<embed id="sound" type="application/x-mplayer2" src="'+media+'"' 
+ 'classid="clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6"'
+ 'pluginspage="http://www.microsoft.com/Windows/MediaPlayer/"'
+ 'type="application/x-mplayer2"'
+ 'url="'+media+'"' 
+ 'volume="100"' 
+ 'width="160" height="144">'               
+ '<\/embed>'
+ '<\/object>';
}
else // if Safari or Firefox, then load Quicktime controls
{
player.innerHTML = '<object '
+ 'classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" '
+ 'width="160" height="144" id="sound"'
+ 'style="position:absolute;left:-1000px;top:-1000px"'
+ 'codebase="http://www.apple.com/qtactivex/qtplugin.cab">'
+ '<param name="SRC" value="'+media+'">'
+ '<param name="AUTOPLAY" value="true">'
+ '<param name="CONTROLLER" value="false">'
+ '<param name="VOLUME" value="100">'
+ '<param name="ENABLEJAVASCRIPT" value="true">'
+ '<param name="TYPE" value="audio/wav">'
+ '<embed classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B"' 
+ 'name="sound"'
+ 'id="sound"' 
+ 'src="'+media+'"' 
+ 'pluginspage="http://www.apple.com/quicktime/download/"'
+ 'volume="100"' 
+ 'enablejavascript="true" '
+ 'type="audio/wav" '
+ 'height="16" '
+ 'width="200"'
+ 'style="position:absolute;left:-1000px;top:-1000px"'
+ 'autostart="true"'
+ '> </embed>'
+ '</object>';
}

} // end function load(media)

function play_song()
{
	// Check to see if current song has stopped
	if (document.getElementById('player').innerHTML == '')
	{
		load(media);
	}
	else // otherwise wait until it has 
		setTimeout('play_song()', 500);
}  // end function play

function stop_song()
{
	var done;
	var mseconds; // milliseconds
	var player = document.getElementById('player'); 
	
	// if IE or Netscape then Media Player Pause Controls
	if (detect_browser() == "MSIE" || 
		detect_browser() == "Netscape")
		mseconds = 500;
	else // if Firefox
		mseconds = 200;
	
	if (document.getElementById('player').innerHTML != '')
	if (fade_out == 1) // if we are fading the volume
	{
		done = fader();
		if (!done)
		{	
			setTimeout('stop_song();', mseconds);
			return;
		}	
	}	
	
	// Call stop function if available in quicktime player
	//document.getElementById('message').innerHTML = (typeof document.sound.Stop);
	if (document.sound)
	if (typeof document.sound.Stop == 'function')
	{
		if (document.getElementById('message'))
		document.getElementById('message').innerHTML = "QT Stop.";
		document.sound.Stop();
	}
	// Call stop function if available in Media player
	//document.getElementById('message').innerHTML = (typeof document.sound.controls);
	if (document.sound)
	if (typeof document.sound.controls == 'object')
	{
		if (document.getElementById('message'))
		document.getElementById('message').innerHTML = "WMP Stop.";
		document.sound.controls.Stop();
	}
	
		
	// Wipe out contents of player DIV
	player.innerHTML = '';
	
} // end function stop()


function detect_browser()
{
	var browser_name = navigator.userAgent;
	// We have to check for Opera first because
	// at the beginning of the userAgent variable
	// Opera claims it is MSIE. 
	
	if (browser_name.indexOf("Opera")!= -1)
		browser_name = "Opera";
	else if (browser_name.indexOf("Firefox")!= -1)
		browser_name = "Firefox";
	else if (browser_name.indexOf("MSIE")!= -1)
		browser_name = "MSIE";
	else if (browser_name.indexOf("Netscape")!= -1)
		browser_name = "Netscape";
	else if (browser_name.indexOf("Safari")!= -1)
		browser_name = "Safari";
	
	return browser_name;
	

} // end function detect_browser()

function play_song_nb(nb)
{
	playlist_length = songs.length - 1;
	
	// stop the current song if playing
	if (document.getElementById('player').innerHTML != '')
		stop_song();
	
	nb  = nb -1;
	if (nb <= playlist_length && nb >= 0)
	{
	  current_song = nb;
	  media = songs[current_song];
	}

	play_song();

} // end function play_song_nb(dir)

window.onload = loadsongs;

window.onunload = stop_song;