(function($){
	
    $.fn.youTubeEmbed = function(settings){
		
        // Settings can be either a URL string,
        // or an object
		
        if(typeof settings == 'string'){
            settings = {
                'video' : settings
            }
        }
		
        // Default values
		
        var def = {
            width	: 640,
            progressBar	: true,
            controlBox  : true,
            link        : null
        };
		
        settings = $.extend(def,settings);
		
        var elements = {
            originalDIV : this,	// The "this" of the plugin
            container   : null,	// A container div, inserted by the plugin
            control     : null,	// The control play/pause button
            player      : null,	// The flash player
            progress    : null,	// Progress bar
            elapsed     : null	// The light blue elapsed bar
        };
		

        try{	

            settings.videoID = settings.video.match(/v(\/|=)(.{11})/)[2];
			
            // The safeID is a stripped version of the
            // videoID, ready for use as a function name

            settings.safeID = settings.videoID.replace(/[^a-z0-9]/ig,'');
		
        } catch (e){
            // If the url was invalid, just return the "this"
            return elements.originalDIV;
        }

        // Fetch data about the video from YouTube's API

        var youtubeAPI = 'http://gdata.youtube.com/feeds/api/videos?v=2&alt=jsonc';

        $.get(youtubeAPI,{
            'q':settings.videoID
        },function(response){
			
            var data = response.data;
	
            if(!data.totalItems || data.items[0].accessControl.embed!="allowed"){
				
                // If the video was not found, or embedding is not allowed;
				
                return elements.originalDIV;
            }

            // data holds API info about the video:
			
            data = data.items[0];
			
            settings.ratio = 3/4;
            if(data.aspectRatio == "widescreen"){
                settings.ratio = 9/16;
            }
			
            settings.height = Math.round(settings.width*settings.ratio);

            // Creating a container inside the original div, which will
            // hold the object/embed code of the video

            elements.container = $('<div>',{
                className:'flashContainer',
                css:{
                    width	: settings.width,
                    height	: settings.height
                }
            }).appendTo(elements.originalDIV);

            // Embedding the YouTube chromeless player
            // and loading the video inside it:

            elements.container.flash({
                swf			: 'http://www.youtube.com/apiplayer?enablejsapi=1&version=3',
                id			: 'video_'+settings.safeID,
                height		: settings.height,
                width		: settings.width,
                allowScriptAccess:'always',
                wmode		: 'transparent',
                flashvars	: {
                    "video_id"		: settings.videoID,
                    "playerapiid"	: settings.safeID
                }
            });

            // We use get, because we need the DOM element
            // itself, and not a jquery object:
			
            elements.player = elements.container.flash().get(0);

            // Creating the control Div. It will act as a ply/pause button
            
            if (settings.controlBox) {
                
                elements.control = $('<div>',{
                    className:'controlDiv ' + ((settings.link == null) ? 'play' : 'link')
                })
                .appendTo(elements.container);
            }
            
            // If the user wants to show the progress bar:

            if(settings.progressBar){
                elements.progress =	$('<div>',{
                    className:'progressBar'
                })
                .appendTo(elements.container);

                elements.elapsed =	$('<div>',{
                    className:'elapsed'
                })
                .appendTo(elements.progress);
				
                elements.progress.click(function(e){
					
                    // When a click occurs on the progress bar, seek to the
                    // appropriate moment of the video.
					
                    var ratio = (e.pageX-elements.progress.offset().left)/elements.progress.outerWidth();
					
                    elements.elapsed.width(ratio*100+'%');
                    elements.player.seekTo(Math.round(data.duration*ratio), true);
                    return false;
                });

            }

            var initialized = false;
			
            // Creating a global event listening function for the video
            // (required by YouTube's player API):
			
            window['eventListener_'+settings.safeID] = function(status){

                var interval;
				
                if(status==-1)	// video is loaded
                {
                    if(!initialized)
                    {
                        // Listen for a click on the control button:
                        if (settings.controlBox) {
                            
                            elements.control.click(function(){
                                
                                if (settings.link != null) {
                                    document.location = settings.link;
                                    return;
                                }
                                
                                if(!elements.container.hasClass('playing')){
								
                                    // If the video is not currently playing, start it:

                                    elements.control.removeClass('play replay').addClass('pause');
                                    elements.container.addClass('playing');
                                    elements.player.playVideo();
								
                                    if(settings.progressBar){
                                        interval = window.setInterval(function(){
                                            elements.elapsed.width(
                                                ((elements.player.getCurrentTime()/data.duration)*100)+'%'
                                                );
                                        },1000);
                                    }
								
                                } else {
								
                                    // If the video is currently playing, pause it:
								
                                    elements.control.removeClass('pause').addClass('play');
                                    elements.container.removeClass('playing');
                                    elements.player.pauseVideo();
								
                                    if(settings.progressBar){
                                        window.clearInterval(interval);
                                    }
                                }
                            });
			}			
                        initialized = true;
                    }
                    else{
                        // This will happen if the user has clicked on the
                        // YouTube logo and has been redirected to youtube.com

                        if(elements.container.hasClass('playing'))
                        {
                            elements.control.click();
                        }
                    }
                }
				
                if(status==0){ // video has ended
                    elements.control.removeClass('pause').addClass('replay');
                    elements.container.removeClass('playing');
                }
            }
			
            // This global function is called when the player is loaded.
            // It is shared by all the videos on the page:
			
            if(!window.onYouTubePlayerReady)
            {				
                window.onYouTubePlayerReady = function(playerID){
                    document.getElementById('video_'+playerID).addEventListener('onStateChange','eventListener_'+playerID);
                }
            }
        },'jsonp');

        return elements.originalDIV;
    }

})(jQuery);