function show_login_fields() {
    document.getElementById("div_login_search_links").style.display = "none";
    document.getElementById("div_login").style.display = "block";
    document.getElementById("div_search").style.display = "none";
    //focus
    document.getElementById("uc_login_search_txt_email").focus();
}
function show_search_fields() {
    document.getElementById("div_login_search_links").style.display = "none";
    document.getElementById("div_login").style.display = "none";
    document.getElementById("div_search").style.display = "block";
    //focus
    document.getElementById("uc_login_search_txt_search").focus();
}
function show_login_search_links() {
    document.getElementById("div_login_search_links").style.display = "block";
    document.getElementById("div_login").style.display = "none";
    document.getElementById("div_search").style.display = "none";
}