Validate errors

<?php 
	include 'header.php'; //get the header
	
	//functions
	//Validate the title
	function validatetitle(){
		if(isset($_POST["submit_newnews"]) && empty($_POST["title_newnews"])) //is it empty or not
		{ 
			print ("<td>You didn't fill in a title.</td>\n");
			return false;
		}
		else if(isset($_POST["submit_newnews"]) && (!preg_match("#^[A-Za-z0-9]+$#i", $_POST["title_newnews"])))
		{
		print ("<td>Title can only consist letters and numbers.</td>\n"); //have yet to add ()-_?!,.
		return false;
		}
		else if(isset($_POST["submit_newnews"]) && !empty($_POST["title_newnews"]) && (preg_match("#^[A-Za-z0-9]+$#i", $_POST["title_newnews"])))
		{
			return true;
		}
	}
	function validatecontent(){
		if(isset($_POST["submit_newnews"]) && empty($_POST["content_newnews"])) //is it empty or not
		{ 
			print ("<td>You didn't fill in any news content.</td>\n");
			return false;
		}
		else if(isset($_POST["submit_newnews"]) && (!preg_match("#^[A-Za-z0-9 .,?_!()-]+$#i", $_POST["content_newnews"])))
		{
		print ("<td>Content can only consist letters and numbers.</td>\n");
		return false;
		}
		else if(isset($_POST["submit_newnews"]) && !empty($_POST["content_newnews"]) && (preg_match("#^[A-Za-z0-9]+$#i", $_POST["content_newnews"])))
		{
			return true;
		}
	}
	function check(){ //check if validatetitle and validatecontent are true or not. If true you get redirected to new page
		if(validatetitle() == false || validatecontent() == false){
			return false;
		}
		if(validatetitle() == true && validatecontent() == true){
			return true;
			header: ('Location: upload_news.php');
		}
	}
?>
<div id="wrapper"> <!-- wrapper of the site needs to be closed in footer -->
	<div id="wrappertop"></div>
	<div id="bg"><!-- bg needs to be closed before wrapper in footer, this is for the background -->
	<div id="side">
		<?php include 'submenu.php'; ?>
	</div>
	<div id="content">
		<div id="titlepage">
			<h2>Upload news item</h2>
		</div>
		<form id="newnews" method="POST" action="<?php check() ?>" name="formnewnews"/>
			<table id="formnewnews">	
				<tr>
					<td><label>Title news article*</label></td>
					<td><input type="text" name="title_newnews" id="title_newnews"/></td>
					<?php validatetitle(); ?>
				</tr>
				<tr>
					<td><label>News article**</label></td>
					<td><textarea rows="6" cols="50" name="content_newnews" id="content_newnews"></textarea></td>
					<?php validatecontent(); ?>
				</tr>
				<tr>
					<td><input type="submit" name="submit_newnews" id="submit_newnews" value="upload new article"/></td>
				</tr>
				<tr>
					<td><em style="font-size:10px;">*a-z, A-Z, 0-9 are allowed</em></td>
				</tr>
				<tr>
					<td><em style="font-size:10px;">**a-z, A-Z, 0-9, ?!.-_() are allowed</em></td>
				</tr>
			</table>
		</form>
	</div>
<?php
	include 'footer.php'; //get the footer
?>