$(document).ready(function(){

	var curSlide = 0;
	var nextSlide;
	var numOfSlides = $('#home_slideshow').children().length;
	var imageWidth = 900;
	var autoMove;
	var topZ = 40;
	var nextZ = 30;
	var isAnimating = 0;

	 
	$('img.slide0').css('display','block');
	automated();

	var btnCaption=new Array(); // array for image captions
		btnCaption[0]='Watch Now';     
		btnCaption[1]='Learn More';
		btnCaption[2]='Watch Now';
		btnCaption[3]='Watch Now';
		btnCaption[4]='Watch Now';
	
	var slideCTA=new Array(); // array for image captions
		slideCTA[0]='films/space_junk.html';     
		slideCTA[1]='films/body_odyssey.html';
		slideCTA[2]='films/sun.html';
		slideCTA[3]='films/mars.html';
		slideCTA[4]='films/future_frontiers.html';
	
	$('img.arrowRight').click(function() {	
			if(isAnimating==0){
				isAnimating = 1;
				clearInterval(autoMove);
				moveleft();
				}
		}).mouseenter(function(){
			$(this).css('opacity','.5');
		}).mouseleave(function(){
			$(this).css('opacity','1');
		});
	
	$('img.arrowLeft').click(function() {	
			if(isAnimating==0){
				isAnimating = 1;
				clearInterval(autoMove);
				moveRight();
				}
		}).mouseenter(function(){
			$(this).css('opacity','.5');
		}).mouseleave(function(){
			$(this).css('opacity','1');
		});
		
	$('#cta_button').click(function() {	
				window.location = slideCTA[curSlide];
		}).mouseenter(function(){
			$(this).css('opacity','.5');
		}).mouseleave(function(){
			$(this).css('opacity','1');
		});
	
	
	function moveleft(){
	
		if(curSlide<4){
			nextSlide = curSlide+1;
			}
		if(curSlide==4){
			nextSlide = 0;
			}
		var slideIn = 'img.slide' + nextSlide;
		var slideOut = 'img.slide' + curSlide;
		$(slideOut).css({'z-index': nextZ});
		$(slideIn).css({'margin-left':'900px', 'display':'block', 'z-index': topZ});
		$(slideIn).animate({'margin-left': '0'}, 500, 'easeOutQuart', function() {
					$('#cta_button').html(btnCaption[nextSlide]);
					onComplete();
				});
	
	}
	
	function moveRight(){
		if(curSlide>0){
			nextSlide = curSlide-1;
			}
		if(curSlide==0){
			nextSlide = 4;
			}
		var slideIn = 'img.slide' + nextSlide;
		var slideOut = 'img.slide' + curSlide;
		$(slideOut).css({'z-index': nextZ});
		$(slideIn).css({'margin-left':'-900px', 'display':'block', 'z-index': topZ});
		$(slideIn).animate({'margin-left': '0'}, 500, 'easeOutQuart', function() {
					$('#cta_button').html(btnCaption[nextSlide]);
					onComplete();
				});
	
	}


	function onComplete(){
		isAnimating = 0;
		$('img.slide'+curSlide).css({'display': 'none'});
		curSlide = nextSlide;
	
	}


	function automated(){
		autoMove = setInterval(function(){moveleft();},6500);
	}
	


	



///////   END DOCUMENT READY FUNCTION  ///////
});