function top_menu_new(what_menu) {
    var w_menu;
    w_menu = document.getElementById(what_menu);
    w_menu.style.background = 'url(images/menu_range2.jpg)';
    w_menu.style.color = '#666699';
}
function top_menu_old(what_menu) {
    var w_menu;
    w_menu = document.getElementById(what_menu);
    w_menu.style.background = 'url(images/menu_range.jpg)';
    w_menu.style.color = '#CC6600';
}
function chat() {
    var chat_window;
    chat_window = window.open("chat.php", "chat",
    "resizeable=no, width=500, height=300, top=10, left=10, status=no, menubar=no, toolbar=no,     scrollbars=yes");
}