function accordian(show){
 document.getElementById(show+'under').style.display='block';
 if(show!='age'){document.getElementById('ageunder').style.display='none';}
 if(show!='pro'){document.getElementById('prounder').style.display='none';}
 if(show!='bus'){document.getElementById('busunder').style.display='none';}
 if(show!='dev'){document.getElementById('devunder').style.display='none';}
 if(show!='inv'){document.getElementById('invunder').style.display='none';}
}