Poptávka: úprava php skriptu - maily z webu s diakritikou

<?php

if(!$_POST) exit;

$email = $_POST['email'];


//$error[] = preg_match('/\b[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b/i', $_POST['email']) ? '' : 'INVALID EMAIL ADDRESS';
if(!eregi("^[a-z0-9]+([_\\.-][a-z0-9]+)*" ."@"."([a-z0-9]+([\.-][a-z0-9]+)*)+"."\\.[a-z]{2,}"."$",$email )){
	$error.="Invalid email address entered";
	$errors=1;
}
if($errors==1) echo $error;
else{
	$values = array ('name','email','message');
	$required = array('name','email','message');
	 
	$your_email = "james@example.com";
	$email_subject = "New Message: ".$_POST['subject'];
	$email_content = "new message:\n";
	
	foreach($values as $key => $value){
	  if(in_array($value,$required)){
		if ($key != 'subject' && $key != 'company') {
		  if( empty($_POST[$value]) ) { echo 'PLEASE FILL IN REQUIRED FIELDS'; exit; }
		}
		$email_content .= $value.': '.$_POST[$value]."\n";
	  }
	}
	 
	if(@mail($your_email,$email_subject,$email_content)) {
		echo 'Message sent!'; 
	} else {
		echo 'ERROR!';
	}
}
?>

<script type="text/javascript">
// <![CDATA[
jQuery(document).ready(function(){
	$('#contactform').submit(function(){				  
		var action = $(this).attr('action');
		$.post(action, { 
			name: $('#name').val(),
			email: $('#email').val(),
			company: $('#company').val(),
			subject: $('#subject').val(),
			message: $('#message').val()
		},
			function(data){
				$('#contactform #submit').attr('disabled','');
				$('.response').remove();
				$('#contactform').before('<p class="response">'+data+'</p>');
				$('.response').slideDown();
				if(data=='Message sent!') $('#contactform').slideUp();
			}
		); 
		return false;
	});
});
// ]]>
</script>

<form action="contact.php" method="post" id="contactform">
            <ol>
              <li>
                <label for="name">First Name <span class="red">*</span></label>
                <input id="name" name="name" class="text" />
              </li>
              <li>
                <label for="email">Your email <span class="red">*</span></label>
                <input id="email" name="email" class="text" />
              </li>
              <li>
                <label for="company">Company</label>
                <input id="company" name="company" class="text" />
              </li>
              <li>
                <label for="subject">Subject</label>
                <input id="subject" name="subject" class="text" />
              </li>
              <li>
                <label for="message">Message <span class="red">*</span></label>
                <textarea id="message" name="message" rows="6" cols="50"></textarea>
              </li>
              <li class="buttons">
                <input type="image" name="imageField" id="imageField" src="images/send.gif" class="send" />
                <div class="clr"></div>
              </li>
          </ol>
      </form>