function change(face) {
	document.signform.bericht.value = document.signform.bericht.value+face;
}

function _(element) 
{
    if (arguments.length > 1) 
    {
        for (var i = 0, elements = [], length = arguments.length; i < length; i++)
          elements.push($(arguments[i]));
        return elements;
    }
    else
        return document.getElementById(element);
}

function changeCode()
{
	_('code_img').src='captcha.php?'+Math.random();
    _('refreshmsg').style.display = 'none';
}