var before_img_array = new Array ('StairsBefore1', 'WalkwayBefore1', 'BE-Pool-C', 'BE-walkway-S', 'BE-walkway-S', 'BE-pool-H', 'BE-pool-R', 'BE-patio-R',  'BE-pool-T', 'BE-pool-T2', 'BE-walkway-P', 'BE-wall-F');



	var before_desc_array = new Array ('', '', '', '', '', '', '', '', '', '');



	var store_img = 0;

	var before_img_ctr = before_img_array.length;

	document.images["before_img"].src = "../imagesExterior/" + before_img_array[store_img] + ".jpg";

	

	var after_img_array = new Array ('StairsAfter1', 'WalkwayAfter1', 'AE-Pool-C', 'AE-walkway-S', 'AE-walkway-S2', 'AE-pool-H', 'AE-pool-R', 'AE-patio-R', 'AE-pool-T', 'AE-pool-T2', 'AE-walkway-P', 'AE-wall-F');



	var after_desc_array = new Array ('', '', '', '', '', '', '', '', '', '');



	var after_img_ctr = after_img_array.length;

	document.images["after_img"].src = "../imagesExterior/" + after_img_array[store_img] + ".jpg";



var beforeCaption = document.getElementById('before');

var afterCaption = document.getElementById('after');

beforeCaption.firstChild.nodeValue = before_desc_array[store_img];

afterCaption.firstChild.nodeValue = after_desc_array[store_img];





function load_prev_img_onclick()

{	

	store_img--;

	if (store_img < 0) {

		store_img = before_img_array.length - 1;

		}

	document.images["before_img"].src = "../imagesExterior/" + before_img_array[store_img] + ".jpg";

	document.images["after_img"].src = "../imagesExterior/" + after_img_array[store_img] + ".jpg";

	beforeCaption.firstChild.nodeValue = before_desc_array[store_img];

	afterCaption.firstChild.nodeValue = after_desc_array[store_img];

	return false;

}



function load_next_img_onclick()

{	

	store_img++;

	if(store_img < before_img_array.length) {

		

		}

	else {

		store_img = 0;

		}

	document.images["before_img"].src = "../imagesExterior/" + before_img_array[store_img] + ".jpg";

	document.images["after_img"].src = "../imagesExterior/" + after_img_array[store_img] + ".jpg";

	beforeCaption.firstChild.nodeValue = before_desc_array[store_img];

	afterCaption.firstChild.nodeValue = after_desc_array[store_img];

	return false;

}