var photoalbum_basefolder = '/siteimages/';
var photoalbum_current = 0;

var photoalbum_images = new Array();
photoalbum_images[0] = new Array( 'top_photo_1.jpg', 'image0' );
photoalbum_images[1] = new Array( 'top_photo_2.jpg', 'image1' );
photoalbum_images[2] = new Array( 'top_photo_3.jpg', 'image2' );
photoalbum_images[3] = new Array( 'top_photo_4.jpg', 'image3' );
photoalbum_images[4] = new Array( 'top_photo_5.jpg', 'image4' );
photoalbum_images[5] = new Array( 'top_photo_6.jpg', 'image5' );


function createAlbum()
{
	document.open();
	document.writeln( '<div id="photoalbum">' );
		document.writeln( '<img id="photoalbum_image" src="' + photoalbum_basefolder + photoalbum_images[photoalbum_current][0] + '" title="'+ photoalbum_images[photoalbum_current][1] + '" align="left" hspace="7" vspace="3" border="0" />' );
		document.writeln( '<p id="photoalbum_caption">' + photoalbum_images[photoalbum_current][1] + '</p>' );
		document.writeln( '<div style="clear: both;">' );
			document.writeln( '<input type="button" value="Previous" onclick="javascript:previousImage();" />' );
			document.writeln( '<input type="button" value="Next" onclick="javascript:nextImage();" />' );
		document.writeln( '</div>' );
	document.writeln( '</div>' );
	document.close();
}

function getRef( id )
{
	var ref;
	
	if (document.getElementById) // this is the way the standards work
		ref = document.getElementById(id);
	else if (document.all) // this is the way old msie versions work
		ref = document.all[id];
	else if (document.layers) // this is the way nn4 works
		ref = document.layers[id];
	
	return ref;
}

function changeImage( image )
{
	imageref = getRef( 'photoalbum_image' );
	imageref.src = photoalbum_basefolder + photoalbum_images[image][0];
	imageref.title = photoalbum_images[image][1];
	
	captionref = getRef( 'photoalbum_caption' );
	captionref.innerHTML = photoalbum_images[image][1];
	
	photoalbum_current = image;
}

function nextImage()
{
	nImage = photoalbum_current + 1;
	
	if (nImage >= photoalbum_images.length)
		nImage = 0;
	
	changeImage( nImage );
}

function previousImage()
{
	pImage = photoalbum_current - 1;
	
	if (pImage < 0)
		pImage = photoalbum_images.length - 1;
	
	changeImage( pImage );
}