/* -----------------------------------------------------------------------------
Returns HTML document content from content database

Input: The current page id (string)
Output: HTML text (string)	
----------------------------------------------------------------------------- */
function return_content($pageid) {   	
	$sql = "SELECT title, content, parent FROM pages WHERE pageid = '".$pageid."'";
	$content = run_query($sql)->fetch_assoc();
	  	
	return '
		<div class="container">
		  <h1>'.$content['title'].'</h1>
			<div class="row">
				<div class="col-md">
					<main>'.$content['content'].'</main>
				</div>
			</div>
			<footer>
				<a class="btn btn-primary float-left" href="?pageid='.$content['parent'].'">Back to parent</a>
				<p class="float-right copy-right">&copy; '.date("Y").'</p>
			</footer>		  
	  </div>';	
}
/* -----------------------------------------------------------------------------
Echo  return_content
----------------------------------------------------------------------------- */
function echo_content($pageid) {
	echo return_content($pageid);
}