var hiduke=new Date(document.lastModified);
var b=hiduke.getDate();                                                              
var c=hiduke.getMonth()+1;                                                             
var d=hiduke.getFullYear();                                                            
var e=new Array("日","月","火","水","木","金","土");                                   
document.write("更新日　：　"+d+"年"+c+"月"+b+"日"+"（"+e[hiduke.getDay()]+"曜日）");

//　更新日　lastmodified.js