function subdivclick(sdid) {
 var currentmenu = document.getElementById(sdid)
   if (currentmenu.style.display == 'block') {
      currentmenu.style.display = 'none';   
    } else {
      currentmenu.style.display = 'block';   
    };
}

function menu_click() {
var currentmenu = document.getElementById(777);
    if (currentmenu.style.visibility == 'visible') {
      currentmenu.style.visibility = 'hidden';   
    } else {
      currentmenu.style.visibility = 'visible';   
    };

};
function menu_hide() {                         
var currentmenu = document.getElementById(777);
    currentmenu.style.visibility = 'hidden';   
};
function menu_show() {                         
var currentmenu = document.getElementById(777);
    currentmenu.style.visibility = 'visible';   
};
function menu_go(surl) {
  self.location=surl;
};
function contclickme() {
    document['bt872'].style.visibility = 'hidden';
    document['bt871'].src = "contacts_map1.jpg";

};