$(document).ready(function() {

    /* E-Mails umwandeln: <a href="mailto:box [at-no-spam] server.tld">title</a> */
    $('a[href^=mailto]').each(function(){
        var to_replace = '=at-no-spam=';
        var link       = $(this).attr('href').replace(to_replace, '@');
        var address    = $(this).html().replace(to_replace, '@');

        $(this).html(address);
        $(this).attr('href', link);
    });

    /* Formular Validierung */
    $('#kontaktform').validate();

});