// JavaScript Document


                                    function s(num){
                                        var liArray = document.getElementById("tabs").getElementsByTagName("li");
                                        var ulArray = document.getElementById("list").getElementsByTagName("span"); 
                                        for (var i = 0; i < liArray.length; i++){ 
                                            liArray[i].className = "";
                                            ulArray[i].style.display = "none"; 
                                        } 
                                            liArray[num].className = "front"; 
                                            ulArray[num].style.display = "block";
                                        }