Number.prototype.money = function(c, d, t){
var n = this, 
    c = isNaN(c = Math.abs(c)) ? 2 : c, 
    d = d == undefined ? "." : d, 
    t = t == undefined ? "," : t, 
    s = n < 0 ? "-" : "", 
    i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", 
    j = (j = i.length) > 3 ? j % 3 : 0;
   return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
}; 
 
function getprice(x) {
   var r = 0;
   var p, q;
   x = x.replace("," ,"");
   x = x.replace(" " ,"");
   x = parseInt(x);
   var ss = "";
   if (x < 0) {
      return "<B>Please Input Property Value";
   }
   if (x <= 125000) {
      return "<B>No stamp duty tax for property under 125K!<br />";
   }
   q = x >= 250000 ? 125000 : x - 125000;
   p = q * 0.02;
   r += p;
   ss += "£125,000.01 - £250,000, 2% " + q.money(2, '.', ',') + "GBP X 2% = Tax <b>" + p.money(2, '.', ',') + " GBP</b><br />";
   if (x >= 250000) {
      q = x >= 925000 ? (925000 - 250000) : x - 250000;
      p = q * 0.05;
      r += p;
      ss += "£250,000.01 - £925,000 5% " + q.money(2, '.', ',') + "GBP X 5% = Tax <b>" + p.money(2, '.', ',') + " GBP</b><br />";
   }
   if (x >= 925000) {
      q = x >= 1500000 ? (1500000 - 925000) : x - 925000;
      p = q * 0.1;
      r += p;
      ss += "£925,000.01 - £1,500,000 10% " + q.money(2, '.', ',') + "GBP X 10% = Tax <b>" + p.money(2, '.', ',') + " GBP</b><br />";
   }
   if (x > 1500000) {
      q = x - 1500000;
      p = q * 0.12;
      r += p;
      ss += "£1,500,000.01, 12% " + q.money(2, '.', ',') + "GBP X 12% = Tax <b>" + p.money(2, '.', ',') + " GBP</b><br />";
   }
   ss += "Total <b>" + r.money(2, '.', ',') + "</b> GBP Stamp Duty, Effective Rate is <b>" + (r/x*100).toFixed(2) + "%</b><br />";
   return ss;
}
document.getElementById("tax1").innerHTML = getprice(document.getElementById("price1").value);