LastDate=new Date(document.lastModified);

LastDay=LastDate.getDate();
LastMonth=LastDate.getMonth();
LastYear=LastDate.getYear();

LastYear=LastYear%100;
LastYear=((LastYear<50) ? (2000+LastYear) : (1900+LastYear));
document.write("Дата последней модификации: ", LastDay, ".", LastMonth+1, ".", LastYear);