?> <b>Username:</b> <input type="text" size="20" maxlength="20" Name="username" <?php if (isset($_POST['username'])) { ?> value="<?php echo $_POST['username']; ?>" <?php } ?> /><br />
<?php if (isset($_POST['username'])) ?> value="<?php echo $_POST['username']; ?>" <?php } ?>/><br />
<?php if (isset($_POST['username'])) { echo " value=", $_POST['username'], " /><br />" ; }