function usemenu(h){
    document.getElementById('menu1').style.display='none';
    document.getElementById('menu2').style.display='none';
    a = h.toString();
    c = 'menu'+a;
    document.getElementById(c).style.display='block';
    
}
//function hidemenu(h){
    //alert("Sorry, the Google Maps API is not compatible with this browser.");
//    document.getElementById('menu1').style.display='none';    
//    document.getElementById('menu2').style.display='none';
//}