<?php echo $_SERVER["SERVER_NAME"] ; ?> <script type="text/javascript">var UrlSite = 'http://www.<?php echo $_SERVER["SERVER_NAME"] ; ?>';</script>
<?php echo $_SERVER["SERVER_NAME"] ; ?>
<script type="text/javascript">var UrlSite = 'http://www.<?php echo $_SERVER["SERVER_NAME"] ; ?>';</script>