Default value to a form

<?php
    $default = get_option('your_name');
    if( $default == "")
    {
        $default = <your default value>;
    }
?>
<input type="text" name="your_name" value="<?php echo $default; ?>" />
</whatever>
http://www.theasciicode.com.ar/ascii-printable-characters/greater-than-sign-inequality-ascii-code-62.html