var promo_images		= 0;
var image_width			= 320;
var slide_time			= 700;
var auto_scroll_time	= 10000;

$(document).ready(function() {

	$('#promo-slideshow').cycle({
		fx					:		'scrollHorz',
		timeout				: 		0,
		speed				:		'fast',
		next				:   	'#next-promo', 
    	prev				:   	'#prev-promo'
	});

	//Calculate slider width
	promo_images	= parseInt($('#slider img').length);
	$('#slider').width(image_width*promo_images);
	
	$('#next-promo').click(function() {
		next_promo();
	});
	
	$('#prev-promo').click(function() {
		prev_promo();
	});

});

function next_promo() {
	
	if( promo_images > 3 ) {
		
		var left = parseInt($('#slider').css('left').replace('px', ''));
		
		if( left > (image_width * (promo_images-3))*-1 ) {
		
			left = left - image_width;	
			$('#slider').stop().animate({left: left}, slide_time);
			
		}
		else {
			$('#slider').stop().animate({left: 0}, 200);
		}
				
	}
	
}

function prev_promo() {

	if( promo_images > 3 ) {
			
		var left = parseInt($('#slider').css('left').replace('px', ''));
		
		if( left != 0 ) {
		
			left	= left + image_width;
			$('#slider').stop().animate({left: left}, slide_time);
		
		}
	
	}

}