var d = new Date();
var d2 = new Date();

var month=new Array(12);
month[0]="Jan";
month[1]="Feb";
month[2]="Mar";
month[3]="Apr";
month[4]="May";
month[5]="Jun";
month[6]="Jul";
month[7]="Aug";
month[8]="Sep";
month[9]="Oct";
month[10]="Nov";
month[11]="Dec";

d.setDate(d.getDate()+7);
document.getElementById('shiprush').innerHTML= month[d.getMonth()]+ "<br />" + d.getDate();
d2.setDate(d2.getDate()+14);
document.getElementById('shipfree').innerHTML= month[d2.getMonth()]+ "<br />" + d2.getDate();