var before_img_array = new Array ('BI-floor-B', 'BI-floor-I');
	
	var before_desc_array = new Array ('', '');
	var store_img = 0;
	var before_img_ctr = before_img_array.length;
	document.images["before_img"].src = "../imagesInterior/" + before_img_array[store_img] + ".jpg";

    var after_img_array = new Array ('AI-floor-B', 'AI-floor-I');

	var after_desc_array = new Array ('', '');
	document.images["after_img"].src = "../imagesInterior/" + 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 = "../imagesInterior/" + before_img_array[store_img] + ".jpg";
	document.images["after_img"].src = "../imagesInterior/" + 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 = "../imagesInterior/" + before_img_array[store_img] + ".jpg";
	document.images["after_img"].src = "../imagesInterior/" + after_img_array[store_img] + ".jpg";
	beforeCaption.firstChild.nodeValue = before_desc_array[store_img];
	afterCaption.firstChild.nodeValue = after_desc_array[store_img];
	return false;
}