//jPlayer

$(document).ready(function(){

	var playItem = 0;
	
	var myPlayList = [
		{name:"Dr. Glousman - Rehab first for ACL tears",mp3:"../_files/audio/GlousmanKFI-080110.mp3"},
		{name:"Dr. Jung - Custom running shoes",mp3:"../_files/audio/JungKFI-071810.mp3"},
		{name:"Dr. Limpisvasti - Left-handed pitchers",mp3:"../_files/audio/LimpisvastiKFI-071110.mp3"},
		{name:"Dr. Williams - Concussion Roundtable 1",mp3:"../_files/audio/ConcussionRoundtableVBW1.mp3"},
		{name:"Dr. Williams - Concussion Roundtable 2",mp3:"../_files/audio/ConcussionRoundtableVBW2.mp3"},
		{name:"Dr. Williams - Concussion Roundtable 3",mp3:"../_files/audio/ConcussionRoundtableVBW3.mp3"},
		{name:"Dr. Williams - Concussion Roundtable 4",mp3:"../_files/audio/ConcussionRoundtableVBW4.mp3"},
		{name:"Dr. Williams - NFL Concussion Culture",mp3:"../_files/audio/VBWConcussionandCulture.mp3"},
		{name:"Dr. Williams - NFL Head Gear",mp3:"../_files/audio/VBWConcussionandHeadGear.mp3"},
		{name:"Dr. Williams - Brain Injuries and Sleep",mp3:"../_files/audio/VBWConcussionandSleep.mp3"},
		{name:"Dr. Williams - Terminology",mp3:"../_files/audio/VBWConcussionTerminology.mp3"}
	];
	
	// Local copy of jQuery selectors, for performance.
	var jpPlayTime = $("#jplayer_play_time");
	var jpTotalTime = $("#jplayer_total_time");
	
	$("#jquery_jplayer").jPlayer({
		ready: function() {
			displayPlayList();
			playListInit(false); // Parameter is a boolean for autoplay.
		},
		oggSupport: false,
		customCssIds: false,
		swfPath: "http://www.kerlanjobe.com/_swf/"
	})
	
	.jPlayer("onProgressChange", function(loadPercent, playedPercentRelative, playedPercentAbsolute, playedTime, totalTime) {
		jpPlayTime.text($.jPlayer.convertTime(playedTime));
		jpTotalTime.text($.jPlayer.convertTime(totalTime));
	})
	
	.jPlayer("onSoundComplete", function() {
		playListNext();
	});
	
	$("#jplayer_previous").click( function() {
		playListPrev();
		$(this).blur();
		return false;
	});
	
	$("#jplayer_next").click( function() {
		playListNext();
		$(this).blur();
		return false;
	});
	
	function displayPlayList() {
		$("#jplayer_playlist ul").empty();
		for (i=0; i < myPlayList.length; i++) {
			var listItem = (i == myPlayList.length-1) ? "<li class='jplayer_playlist_item_last'>" : "<li>";
			listItem += "<a href='#' id='jplayer_playlist_item_"+i+"' tabindex='1'>"+ myPlayList[i].name +"</a></li>";
			$("#jplayer_playlist ul").append(listItem);
			$("#jplayer_playlist_item_"+i).data( "index", i ).click( function() {
				var index = $(this).data("index");
				if (playItem != index) {
					playListChange( index );
				} else {
					$("#jquery_jplayer").jPlayer("play");
				}
				$(this).blur();
				return false;
			});
		}
	}
	
	function playListInit(autoplay) {
		if(autoplay) {
			playListChange( playItem );
		} else {
			playListConfig( playItem );
		}
	}
	
	function playListConfig( index ) {
		$("#jplayer_playlist_item_"+playItem).removeClass("jplayer_playlist_current").parent().removeClass("jplayer_playlist_current");
		$("#jplayer_playlist_item_"+index).addClass("jplayer_playlist_current").parent().addClass("jplayer_playlist_current");
		playItem = index;
		$("#jquery_jplayer").jPlayer("setFile", myPlayList[playItem].mp3, myPlayList[playItem].ogg);
	}
	
	function playListChange( index ) {
		playListConfig( index );
		$("#jquery_jplayer").jPlayer("play");
	}
	
	function playListNext() {
		var index = (playItem+1 < myPlayList.length) ? playItem+1 : 0;
		playListChange( index );
	}
	
	function playListPrev() {
		var index = (playItem-1 >= 0) ? playItem-1 : myPlayList.length-1;
		playListChange( index );
	}

});