function sxzkmenu(n) {
    for(var i = 1; i < 10; i++) {
        obj = document.getElementById('sxzkmenu'+i);
        img = document.getElementById('sxzkmenu_button'+i);
        if ( n == i ) {
            obj.style.display = "block";
			img.height = 30;
            img.src = "images/tabon"+i+".gif";    
        } else {
            obj.style.display = "none";
			img.height = 30;
            img.src = "images/taboff"+i+".gif";
        }
    }
}