function showOffice(id) {
    var offices = ['corporate', 'stamford', 'durham', 'italy', 'china'];
    for(var i = 0; i < offices.length; ++i) {
        if(id == offices[i]) {
            if($(id).style.display == 'none' || $(id).style.display == '') {
                $(id).style.display = 'block';
            }
        }
        else {
            if($(offices[i]).style.display != 'none') {
                $(offices[i]).style.display = 'none';
            }
        }
    }
    if(id != "corporate" && $("corporate").style.display == "block") {
        $("corporate").style.display = "none";
    }
    return ;
}