I have a url that change every day based on today\'s date, for example:
http://www.newspaper.com/edition/20141227.ht
You can try the below code. Hope this helps.
var today = new Date();
var dd = today.getDate();
var mm = today.getMonth()+1; //January is 0!
var yyyy = today.getFullYear();
if(dd<10){dd='0'+dd};
if(mm<10){mm='0'+mm};
today = yyyy+mm+dd;
var new_url=document.URL+"/"+today+".html";
console.log(new_url);