function showgallery(gallery) {
	gallerytoopen = document.getElementById(gallery);
	if (gallerytoopen.style.top=='50%')
	{
		gallerytoopen.style.top='-100%';
		gallerytoopen.style.left='-100%';
	document.getElementById('windowgallerybg').style.display='';
	} else {
		var galleryparent = document.getElementById('galleries');
		var childCount = galleryparent.getElementsByTagName('div').length;
		for(i=1; i<childCount; i++) {
			gallerytoclose = 'windowgallery' + i;
			if (document.getElementById(gallerytoclose))
			{
				document.getElementById(gallerytoclose).style.top='-100%';
				document.getElementById(gallerytoclose).style.left='-100%';
			}
			
		}
	gallerytoopen.style.top='50%';
	gallerytoopen.style.left='50%';
	document.getElementById('windowgallerybg').style.display='block';
	
	}
}