function update_author()
{
		var author = document.getElementById('author').value;
		if (!author)
		{
			author = 'You';
		}
		var url = document.getElementById('url').value;
		if (url)
		{
			author = '<a href="' + url + '">' + author + '</a>';
		}
		document.getElementById('author_preview').innerHTML = author;
		
		
		now = new Date;
		var month = now.getMonth();
		month++;
		var day = now.getDate();
		var year = now.getFullYear();
		var hour = now.getHours();
		var minute = now.getMinutes();
		if (minute < 10)
		{
			minute = '0' + minute;
		}
		var current_time = month + '/' + day + '/' + year + ' ' + hour + ':' + minute;
		document.getElementById('date_preview').innerHTML = current_time;
}

function update_comment()
{
	var comment = document.getElementById('comment').value;
	if (!comment)
	{
		comment = 'Comment';
	}
	comment = comment.replace(/(\r|\n)/g,'</p><p>');
	document.getElementById('comment_preview').innerHTML = '<p>' + comment + '</p>';
}