/*

	Started on June 6, 2008 with code from

		Jeffrey Jordan Way, a Web Developer from Nashville, TN
			detacheddesigns.com in a post called " Why Aren't You Using jQuery: PART 3"

		http://www.detacheddesigns.com/blog/blogSpecific.aspx?BlogId=62
		http://www.detacheddesigns.com/blog/files/jQueryImageGallery.zip
		http://www.detacheddesigns.com/blog/samples/jQueryImageGallery/gallery.htm

	This revision by David Van Vickle - http://www.davidvanvickle.com
		
		Added
			Randomness
			Shuffling
			Automatic transitions
		Removed
			Thumbnails
	
*/

// change these paths for your images


// how many times should the photo change per page load
var maxChanges = myImages.length * 1;

// shuffle images so each time page loads, the photos show in different order
var do_shuffle = false;

// use simple randomness instead of shuffling (tends to repeat images too often)
var do_randomly = false;

// number of seconds between photo changes
var seconds_between_photos = 6;

// name of DIV to load photos into
var div_name = "master";



var mychecker = 0;




var changes = 0;
var timer;
var thisImg = myImages.length - 1;

//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/array/shuffle [v1.0]

shuffle = function(o){ //v1.0
	for(var j, x, i = o.length; i; j = parseInt(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
	return o;
};




// shuffling is better than random because of less potential repetition
if (do_shuffle) {
	myImages = shuffle(myImages);	
}



function nextImage () {
	
	var low = 0;
	var high = myImages.length - 1;
	var rand_no = Math.floor((high-(low - 1))*Math.random()) + low;
	
	thisImg++;
	changes++;
	if (thisImg==myImages.length) {
		thisImg = 0;
	}
	
	if (changes>maxChanges) {
		$("#preloader").hide();
		seconds_between_photos = 5;
	}
	
	if (do_randomly) {
		thisImg = rand_no;
		return myImages[rand_no];
	} else {
		
		return myImages[thisImg];
	}
}

function changeImage () {
	
	var t = myImages[thisImg];
	//_getsizefromDB(myImagesWidths[thisImg], myImagesHeights[thisImg]);
	
	
	var n = nextImage();
	
	
	if (t != n) {
		//$("#"+div_name).addClass("loading");
		showImage(n);
	} else {
		changeImage();
	}
}

function showImage(src)
{
	//_getsizefromDB(myImagesWidths[thisImg], myImagesHeights[thisImg]);
	//$("#"+div_name+" img").fadeOut("normal");
	//$("#"+div_name+" img").fadeOut("normal", function(){document.getElementById(div_name).innerHTML = '';});
	
	
	$("#"+div_name+" img").fadeOut("normal", function(){
		$("#"+div_name+" img").remove();
		document.getElementById(div_name).innerHTML="<div></div>";
	
	
	var largeImage = new Image();
	
	mychecker = 0;
	
		$(largeImage).load(function()
                        {
                        	mychecker = 1;
							$(this).hide();
                        	//$("#"+div_name).append(this).removeClass("loading");
                        	$("#"+div_name+"").append(this);
                                             
                       		$(this).fadeIn("slow");  
                       		_getsizefromDB(myImagesWidths[thisImg], myImagesHeights[thisImg]);
                        	showrealresize();
                        });
                        

	
	
                        
        if(document.getElementById(div_name)){                
			$(largeImage).attr("src", src);
	
			$(largeImage).attr("id", 'lightbox-image');
	
			$(largeImage).attr("style", 'display: inline;');
	
			$(largeImage).fadeIn("slow");  
		}
	
	
	});
}

function checkForLoaded () {
	if (document.getElementById(div_name) != null) {
		//alert("loaded");
		clearInterval(timer);
		changeImage();
		timer = setInterval(changeImage, (seconds_between_photos * 1000));
	}
}

// check every second to see if DIV exists, when it does, start photo changing timer
timer = setInterval(checkForLoaded, 500);