var months = new Array ("January","February","March","April","May","June","July","August","September","October","November","December");

var lmod = new Date(document.lastModified);
var MO = lmod.getMonth(document.lastModified); 
var D = lmod.getDate(document.lastModified); 
var Y = lmod.getFullYear(document.lastModified); 

var T = D+" "+months[MO]+" "+Y
document.writeln("Last updated: "+T);