Custom Contact Form Included in Theme

Hi!

Now I’m making a custom contact form included in my theme. But, can’t send the message. Anybody can help me what’s wrong in my code below? thanks before.

template-contact.php

<?php
	/* Template Name: Contact */

if($_POST[sent]) {
	$email = wp_mail(get_option("admin_email"),"[".get_option("blogname")."] Message from ".trim($_POST[contactName]),stripslashes(trim($_POST[contactText])),"From: ".trim($_POST[contactName])." <".trim($_POST[contactEmail]).">\r\nReply-To:".trim($_POST[contactEmail]));

}
?>

<?php get_header(); ?>

			<!--start .content-->
			<div class="content">

				<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
				<!--start .block-post-->
				<div class="block-post">
					<div class="page-title">
						<h1><?php the_title(); ?></h1>
					</div>
					<div class="clear"></div>

					<div class="single-content">
						<?php the_content(); ?>

						<div class="contact-form-wrap">
							<form action="<?php the_permalink(); ?>" method="post" class="contact-form" id="contactForm">
								<input type="hidden" name="sent" id="sent" value="1" />

								<?php if($email){ ?>
									<p class="email-sent"><?php _e('Message succesfully sent. I\'ll reply as soon as I can', 'xavier'); ?></p>
								<?php }  ?>

								<div>
									<label for="contactName"><?php _e('Name', 'xavier'); ?> <span class="required"><?php _e('(required)', 'xavier'); ?></span></label>
									<input class="text" type="text" name="contactName" id="contactName" value="<?php echo $_POST[contactName];?>" />
									<p class="error-msg"><?php _e('Please enter a name.', 'xavier'); ?></p>
								</div>

								<div>
									<label for="contactEmail"><?php _e('E-mail', 'xavier'); ?> <span class="required"><?php _e('(required)', 'xavier'); ?></span></label>
									<input class="text" type="text" name="contactEmail" id="contactEmail" value="<?php echo $_POST[contactEmail];?>" />
									<p class="error-msg"><?php _e('Please enter a valid e-mail address.', 'xavier'); ?></p>
								</div>

								<div>
									<label for="contactText"><?php _e('Your Message', 'xavier'); ?> <span class="required"><?php _e('(required)', 'xavier'); ?></span></label>
									<textarea name="contactText" id="contactText"><?php echo stripslashes($_POST[contactText]); ?></textarea>
									<p class="error-msg"><?php _e('Please enter a message.', 'xavier'); ?></p>
								</div>

								<input type="submit" name="submit" class="submit" value="<?php _e('Send Message', 'xavier'); ?>" />
							</form>
						</div>
					</div>
				</div>
				<!--end .block-post-->
				<?php endwhile; endif; ?>

			</div>
			<!--end .content-->

			<!--start .sidebar-->
			<div class="sidebar">
				<?php get_sidebar(); ?>
			</div>
			<!--end .sidebar-->

<?php get_footer(); ?>

script.js

jQuery(document).ready(function($) {
	/////////////////////// Contact form ///////////////////////////////////
	$('#contactForm').live('submit', function(e) {
		var form = $(this);
		var name = $(this).find('[name=contactName]').val();
		var email = $(this).find('[name=contactEmail]').val();
		var message = $(this).find('[name=contactText]').val();

		if(name == '') {
			$(this).find('[name=contactName]').addClass('error');
			$(this).find('[name=contactName]').parent().find('.error-msg').fadeIn();

			return false;
		} else {
			$(this).find('[name=contactName]').removeClass('error');
			$(this).find('[name=contactName]').parent().find('.error-msg').fadeOut();
		}

		var email_regex = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;
		if(email == ''  || !email_regex.test(email)) {
			$(this).find('[name=contactEmail]').addClass('error');
			$(this).find('[name=contactEmail]').parent().find('.error-msg').fadeIn();

			return false;
		} else {
			$(this).find('[name=contactEmail]').removeClass('error');
			$(this).find('[name=contactEmail]').parent().find('.error-msg').fadeOut();
		}

		if(message == '') {
			$(this).find('[name=contactText]').addClass('error');
			$(this).find('[name=contactText]').parent().find('.error-msg').fadeIn();

			return false;
		} else {
			$(this).find('[name=contactText]').removeClass('error');
			$(this).find('[name=contactText]').parent().find('.error-msg').fadeOut();
		}

		$.ajax({
			url: XavierVars.ajaxUrl,
			data: jQuery(form).serialize()+'&action=xavier_contact_form',
			type: 'POST',
			success: function() {
				$('.email-sent').fadeIn(400).delay(5000).fadeOut(400);
			}
		});

		e.preventDefault();
	});

});