(function ($) {
	var busy = false;
	var background = 0;	
	var timer;
	var background_delay = 5000;


$(document).ready(function(){
	//var background_delay = 5000;
	
	timer = setInterval( function(){slideSwitch(1)}, background_delay);
	
	$("#btnNextSlide").click( function() { slideSwitch(0); });
	$("#btnPrevSlide").click( function() { slideSwitch(1); });
	
});

function slideSwitch(next_photo) {

	function changeBackground() {
		
		if ( $("#background1").css('display') == 'none') {
			$("#background1").attr('src',backgrounds[background]);
			$("#background2").fadeOut(1000);
			$("#background1").fadeIn(1000);
		} else {
			$("#background2").attr('src',backgrounds[background]);
			$("#background1").fadeOut(1000);
			$("#background2").fadeIn(1000);
		}
	}
	
	
	if (!busy){
		
		busy = true;
		
		clearTimeout(timer);
		timer = setInterval( function (){slideSwitch(1)}, background_delay);
		
		
		if (!next_photo) {
			
			if (background==0) background = backgrounds.length-1;
			else background--;
			
		} else {
			
			if (background==(backgrounds.length-1)) background = 0;
			else background++;		
			
		}
		
		
		bckimg= new Image();
		bckimg.src= backgrounds[background];
	
		// For IE:
		if ($.browser.msie) {
			
			function testImg(){
		        if(bckimg.complete != null && bckimg.complete == true){ 
		                changeBackground();
		                return;
		        }
			
		        setTimeout(testImg, 300);
			}
			setTimeout(testImg, 300);
		
		}
		else bckimg.onload = changeBackground;
		
		// Preload next image!
		bckimgnew= new Image();
		bckimgnew.src= backgrounds[background+1];
		
		busy=false;
		
	}
	else { clearTimeout(timer); timer = setTimeout( function (){slideSwitch(1)}, 1500)}
}




})(jQuery);;