function validate_checkboxes(field){
	var valid = false;
	
	for (i = 0; i < field.length; i++) {
			if (field[i].checked == true) {
				 valid = true;
			}
	}
	
	if (valid == false) {
		 alert('Nothing is selected!');
		 return false;
	} else {
		 return true;
	}
}	

function hide_details(){
	
	$('#exif_data').hide('slow');
	$('#exif_toggle').html('<a accesskey="d" href="javascript:void(0);" onclick="show_details();">Show details</a>');
}

function show_details(){
	
	$('#exif_data').show('slow');
	$('#exif_toggle').html('<a accesskey="d" href="javascript:void(0);" onclick="hide_details();">Hide details</a>');
}

$(function() {
	$('.slides .photos').Tooltip({
		delay: 0,
		track: true,
		showURL: false
	});
});