(function($){
	
	$.randomImage = {
		defaults: {
			
			//you can change these defaults to your own preferences.
			path: 'frontpagegallery/1/', //change this to the path of your images
			myImages: ['1.jpg', '2.jpg', '3.jpg', '4.jpg', '5.jpg', '6.jpg', '7.jpg', '8.jpg'] //put image names in this bracket. ex: 'harold.jpg', 'maude.jpg', 'etc'
			
			// EXX: ovo su nekakve default vrijednosti, no koristenje njih nije fleksibilno. umjesto toga, predaje ih se kao argument pri svakom pozivu funkcije, te se tako pri razlicitim pozivima mogu randomizirat skroz razlicite slike
			
		}			
	}
	
	$.fn.extend({
			randomImage:function(config) {
				
				var config = $.extend({}, $.randomImage.defaults, config); 
				
				 return this.each(function() {
						
						var imageNames = config.myImages;
						
						//get size of array, randomize a number from this
						// use this number as the array index

						var imageNamesSize = imageNames.length;

						var lotteryNumber = Math.floor(Math.random()*imageNamesSize);

						var winnerImage = imageNames[lotteryNumber];

						var fullPath = config.path + winnerImage;
						
						
						//put this image into DOM at class of randomImage
						// alt tag will be image filename.
						$(this).attr( {
										src: fullPath,
										alt: winnerImage
									});
				
						
				});	
			}
			
	});
	
	
	
})(jQuery);