function Change_Photo(path,title)
{
	document.getElementById('img_holder').src = path;
	document.getElementById('img_title').innerHTML = title;
}

function next_group()
{
	if(next_page<=num_pages)
	{
		start_point = (end_point + 1);
		var check = 'on';
		
		for(var x=0; x < num_thumbs; x++)
		{
			var next = (start_point + x);
			if(next > num_photos)
			{
				document.getElementById('thumb_holder_' + (x+1)).innerHTML = '<img src="images/spacer.gif" height="50" width="75" />';
				if(check == 'on')
				{
					check = 'off';
					end_point = num_photos;
				}
			}
			else
			{
				document.getElementById('thumb_holder_' + (x+1)).innerHTML = '<a href="javascript:NewWindow(\'includes/large_view.php?path='+original_imgs[(next - 1)]+'\',\'Diane_Matzner\',\'1000\',\'800\',\'center\',\'front\')" onmouseover="javascript:Img_Swap(\''+lg_imgs[(next - 1)]+'\', \''+next+'\')"><img src="'+sm_imgs[(next - 1)]+'" id="img_'+x+'" class="thumb" /></a>';
				end_point = next;
			}
		}
		document.getElementById('img_holder').src = lg_imgs[(start_point-1)];
		document.getElementById('img_title').innerHTML = 'Image ' + start_point;
		
		if(end_point == num_photos)
		{
			document.getElementById('prev').innerHTML = '<a href="javascript:prev_group()"><img src="images/prev.jpg" border="0" /></a>';
			document.getElementById('next').innerHTML = '<img src="images/spacer.gif" width="54" height="16" />';
		}
		else if(start_point == 1)
		{
			document.getElementById('prev').innerHTML = '<img src="images/spacer.gif" width="54" height="16" />';
			document.getElementById('next').innerHTML = '<a href="javascript:next_group()"><img src="images/next.jpg" border="0" /></a>';
		}
		else
		{
			document.getElementById('prev').innerHTML = '<a href="javascript:prev_group()"><img src="images/prev.jpg" border="0" /></a>';
			document.getElementById('next').innerHTML = '<a href="javascript:next_group()"><img src="images/next.jpg" border="0" /></a>';
		}
		curr_page++;
		prev_page++;
		next_page++;
	}
}

function prev_group()
{
	if(prev_page>=1)
	{
		end_point = (start_point - 1);
		start_point = (start_point - num_thumbs);
		var check = 'on';
		
		for(var x=0; x < num_thumbs; x++)
		{
			var next = (start_point + x);
			if(next > num_photos)
			{
				document.getElementById('thumb_holder_' + (x+1)).innerHTML = '<img src="images/spacer.gif" height="50" width="75" />';
				if(check == 'on')
				{
					check = 'off';
					end_point = num_photos;
				}
			}
			else
			{
				document.getElementById('thumb_holder_' + (x+1)).innerHTML = '<a href="javascript:NewWindow(\'includes/large_view.php?path='+original_imgs[(next - 1)]+'\',\'Diane_Matzner\',\'1000\',\'800\',\'center\',\'front\')" onmouseover="javascript:Img_Swap(\''+lg_imgs[(next - 1)]+'\', \''+next+'\')"><img src="'+sm_imgs[(next - 1)]+'" id="img_'+x+'" class="thumb" /></a>';
				end_point = next;
			}
		}
		document.getElementById('img_holder').src = lg_imgs[(start_point-1)];
		document.getElementById('img_title').innerHTML = 'Image ' + start_point;
		
		if(end_point == num_photos)
		{
			document.getElementById('prev').innerHTML = '<a href="javascript:prev_group()"><img src="images/prev.jpg" border="0" /></a>';
			document.getElementById('next').innerHTML = '<img src="images/spacer.gif" width="54" height="16" />';
		}
		else if(start_point == 1)
		{
			document.getElementById('prev').innerHTML = '<img src="images/spacer.gif" width="54" height="16" />';
			document.getElementById('next').innerHTML = '<a href="javascript:next_group()"><img src="images/next.jpg" border="0" /></a>';
		}
		else
		{
			document.getElementById('prev').innerHTML = '<a href="javascript:prev_group()"><img src="images/prev.jpg" border="0" /></a>';
			document.getElementById('next').innerHTML = '<a href="javascript:next_group()"><img src="images/next.jpg" border="0" /></a>';
		}
		curr_page--;
		prev_page--;
		next_page--;
	}
}