function showInfo(object, duration) {
	$('#' + object).css('top', $(window).height()/2-$('#' + object).height()/2); 
	$('#' + object).css('left', $(window).width()/2-$('#' + object).width()/2);
	
	$('#' + object).fadeIn('slow'); 
	
	if (typeof duration == 'undefined') {
		duration = 1500;
	}
	
	/* message(duration); */
		
	if (duration > 0) {
		setTimeout(function(){ 
			$('#' + object).fadeOut('slow'); 
		}, duration);
	}
}