function highlightCurrent(id){
		//remove all highlighting
		var aTags =  document.getElementsByTagName("a")  ;
		for (var x = 0; x < aTags.length; x++) {
			if (aTags[x].className == 'highlight')
				aTags[x].className = '';
	 	}
	 	
	 	//highlight current
	 	document.getElementById('thumb_link_' + id).className = 'highlight';
}

function photo_info(show) {
		//show the photo information
		if(show)
			document.getElementById('photoInformation').style.display = 'block';
		else
			document.getElementById('photoInformation').style.display = 'none';
}

function checkPhotoActionShell() {
	//slide down the photo shell if it isn't visible
	if (Element.visible('PhotoActionShell'))
		Effect.Fade('inner_photo_display', {duration:0.3});
	else
		Effect.BlindDown('PhotoActionShell', {duration:0.3});
}