function poloniex(from, to) {
  var url = "https://poloniex.com/public?command=returnTicker";


  var response = UrlFetchApp.fetch(url);
  var test = response.getContentText();

  var myjson = JSON.parse(test);
  //var leng = myjson.data.length;

  var DATA = myjson[from.toUpperCase()+"_"+to.toUpperCase()];

  var price = DATA.last;


  return parseFloat(price);
}