function xMail(adress) {
 var xDom = 'hannover-hallo';
 var xtld = '.de';
 var t1 = 'Email: ';
 var a1 = '<a href="mailto:'+adress+'@'+xDom+xtld+'">';
 var t2 = adress+'@'+xDom+xtld;
 var a2 = '</a><br />';
 document.write(t1 + a1 + t2 + a2);
}
function aktiveBox(xFirma) {
 document.getElementById(xFirma+'-he').className = 'a_content_head';
 document.getElementById(xFirma+'-mi').className = 'a_content_middle';
 document.getElementById(xFirma+'-fo').className = 'a_content_footer';
}
function inaktiveBox(xFirma) {
 document.getElementById(xFirma+'-he').className = 'content_head';
 document.getElementById(xFirma+'-mi').className = 'content_middle';
 document.getElementById(xFirma+'-fo').className = 'content_footer';
}