yId("number").value;
  	var message = document.getElementById("message").value;
  	console.log(api_key + " - " + number + " - " + message);
  	xhttp.onreadystatechange = function() {
      if (this.readyState == 4 && this.status == 200) {
        var data=xhttp.responseText;
        var timeout = '504 Gateway Time-out';
        if(data.indexOf(timeout) != -1) {
            alert('Timeout!!! Gagal mengirim pesan.');
        } else {
            var jsonResponse = JSON.parse(data);
            if(jsonResponse