var months = ['January','February','March','April','May','June','July','August','September','October','November','December'];
var today = new Date();
today.setDate(today.getDate() + 28);
var sup = "";
if (today.getDate() == 1 || today.getDate() == 21 || today.getDate() == 31)
   { sup = "st"; }
else if (today.getDate() == 2 || today.getDate() == 22)
   { sup = "nd"; }
else if (today.getDate() == 3 || today.getDate() == 23)
   { sup = "rd"; }
else
   { sup = "th"; }
document.write(months[today.getMonth()] + ' ' + today.getDate() + sup + "!");