/*
Supersized - Fullscreen Slideshow jQuery Plugin
By Sam Dunn (www.buildinternet.com // www.onemightyroar.com)
Version: supersized.2.0.js // Relase Date: 5/7/09
Website: www.buildinternet.com/project/supersized
Thanks to Aen for preloading, fade effect, & vertical centering
*/

(function($){



	//Resize image on ready or resize
	$.fn.supersized = function() {
		$.inAnimation = false;
		$.paused = false;
		var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);

        var supersize = $('#supersize');
		
		$(document).bind("ready", function(){
			$('#loading').hide();
			supersize.fadeIn('fast');
			$('#content').show();
			if ($('#slideshow .activeslide').length == 0) $('#supersize a:first').addClass('activeslide');
			if (options.slide_captions == 1) $('#slidecaption').html($('#supersize .activeslide').find('img').attr('title'));
			if (options.navigation == 0) $('#navigation').hide();
			//Slideshow
			if (options.slideshow == 1){
				if (options.slide_counter == 1){ //Initiate slide counter if active
					$('#slidecounter .slidenumber').html(1);
	    			$('#slidecounter .totalslides').html($("#supersize > *").size());
	    		}
				slideshow_interval = setInterval("nextslide()", options.slide_interval);
			}

            supersize.resizenow();
		});
				
		$(window).bind("resize", function(){
    		supersize.resizenow();
		});
		
		supersize.hide();
		$('#content').hide();
	};
	
	//Adjust image size
	$.fn.resizenow = function() {
		var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
	  	return this.each(function() {

            //Once the window is loaded, calculate the height of the #supersize element, so that it will resize the entire
            // picture inside the part of the screen that can be seen.

            var super_size_height = $(window).height() - $('#menu').height();

            $('#picture_container').height(super_size_height);
            $('#supersize').height(super_size_height);
	  		
			//Define image ratio
			var ratio = options.startheight/options.startwidth;
			
			//Gather browser and current image size
			var imagewidth = $(this).width();
			var imageheight = $(this).height();
			var browserwidth = $("#picture_container").width();
			var browserheight = $("#picture_container").height();
			var offset;

			//Resize image to proper ratio
			if ((browserheight/browserwidth) > ratio){
			    $(this).height(browserheight);
			    $(this).width(browserheight / ratio);
			    $(this).children().height(browserheight);
			    $(this).children().width(browserheight / ratio);
			} else {
			    $(this).width(browserwidth);
			    $(this).height(browserwidth * ratio);
			    $(this).children().width(browserwidth);
			    $(this).children().height(browserwidth * ratio);
			}
			if (options.vertical_center == 1){
				$(this).children().css('left', (browserwidth - $(this).width())/2);
				$(this).children().css('top', (browserheight - $(this).height())/2);
			}
			return false;
		});
	};
	
	$.fn.supersized.defaults = { 
			startwidth: 4,  
			startheight: 3,
			vertical_center: 1,
			slideshow: 1,
			navigation:1,
			transition: 1, //0-None, 1-Fade, 2-slide top, 3-slide right, 4-slide bottom, 5-slide left
			pause_hover: 0,
			slide_counter: 1,
			slide_captions: 1,
			slide_interval: 5000
	};
	
})(jQuery);

	//Slideshow Next Slide
	function nextslide() {
		if($.inAnimation) return false;
		else $.inAnimation = true;
	    var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
	    var currentslide = $('#supersize .activeslide');
	    currentslide.removeClass('activeslide');
		
	    if ( currentslide.length == 0 ) currentslide = $('#supersize a:last');
			
	    var nextslide =  currentslide.next().length ? currentslide.next() : $('#supersize a:first');
	    var prevslide =  nextslide.prev().length ? nextslide.prev() : $('#supersize a:last');
		
		$('.prevslide').removeClass('prevslide');
		prevslide.addClass('prevslide');
		
		//Captions require img in <a>
	    if (options.slide_captions == 1) $('#slidecaption').html($(nextslide).find('img').attr('title'));
		
	    nextslide.hide().addClass('activeslide')
	    	if (options.transition == 0){
	    		nextslide.show(); $.inAnimation = false;
	    	}
	    	if (options.transition == 1){
	    		nextslide.fadeIn(750, function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 2){
	    		nextslide.show("slide", { direction: "up" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 3){
	    		nextslide.show("slide", { direction: "right" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 4){
	    		nextslide.show("slide", { direction: "down" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 5){
	    		nextslide.show("slide", { direction: "left" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	
	    //supersize.resizenow();//Fix for resize mid-transition
	    
	}
	
	//Slideshow Previous Slide
	function prevslide() {
		if($.inAnimation) return false;
		else $.inAnimation = true;
	    var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
	    var currentslide = $('#supersize .activeslide');
	    currentslide.removeClass('activeslide');
		
	    if ( currentslide.length == 0 ) currentslide = $('#supersize a:first');
			
	    var nextslide =  currentslide.prev().length ? currentslide.prev() : $('#supersize a:last');
	    var prevslide =  nextslide.next().length ? nextslide.next() : $('#supersize a:first');
		
		//Display slide counter
		if (options.slide_counter == 1){
			var slidecount = $('#slidecounter .slidenumber').html();
			currentslide.prev().length ? slidecount-- : slidecount = $("#supersize > *").size();
		    $('#slidecounter .slidenumber').html(slidecount);
		}
		
		$('.prevslide').removeClass('prevslide');
		prevslide.addClass('prevslide');
		
		//Captions require img in <a>
	    if (options.slide_captions == 1) $('#slidecaption').html($(nextslide).find('img').attr('title'));
		
	    nextslide.hide().addClass('activeslide')
	    	if (options.transition == 0){
	    		nextslide.show(); $.inAnimation = false;
	    	}
	    	if (options.transition == 1){
	    		nextslide.fadeIn(750, function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 2){
	    		nextslide.show("slide", { direction: "down" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 3){
	    		nextslide.show("slide", { direction: "left" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 4){
	    		nextslide.show("slide", { direction: "up" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 5){
	    		nextslide.show("slide", { direction: "right" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	
	  //  	supersize.resizenow();//Fix for resize mid-transition
	}