https://js.bhvd.de/plz2town.js?q=GUFWPWNFWI

1/* ==================================================================== 
2ermittelt aus der PLZ den Ort
3(c)01/2024 fluSoft GbR, [email protected] | 25.01.2024 
4====================================================================== */ 
5console.log("plz2town geladen");
6function UStId(){
7let chBx = document.querySelectorAll("input[name='checkbox-wieder']");
8alert("Wert: "+chBx[0].value);
9if (chBx[0].value == "Ja"){
10  document.getElementById("ust_id").style.display="block";
11} else {
12  document.getElementById("ust_id").style.display="none";
13 };
14};
15
16function Plz2Town(){
17console.log("plz2town aufgerufen");
18let str="";
19let town="";
20var oldtown = window.document.bform.Ort.value; 
21  document.all.select_ort.innerHTML = '<input class="formular kontakt" type="text" size="26" name="Ort" required title="Geben Sie bitte den Ortsnamen an!" value="'+oldtown+'"/>';
22  const xhr = new XMLHttpRequest();
23  let land ="";
24  if ((window.document.bform.Land.value.toUpperCase()=="DE") ||
25	   (window.document.bform.Land.value.toUpperCase()=="D"))
26		{ land="de";};
27  if ((window.document.bform.Land.value.toUpperCase()=="AT") ||
28	   (window.document.bform.Land.value.toUpperCase()=="A"))
29         { land="at";};
30  if (window.document.bform.Land.value.toUpperCase()=="CH"){ land="ch";};
31
32  if ((land=="at") ||
33      (land=="de") ||
34      (land=="ch"))
35     {
36  var req = "https://openplzapi.org/"+land+"/Localities?postalCode="+window.document.bform.Plz.value;
37  xhr.open("GET", req);
38  xhr.send();
39  xhr.responseType = "text";
40  xhr.onload = () => {
41    if (xhr.readyState == 4 && xhr.status == 200) {
42      var jdata = xhr.response;
43      let data = JSON.parse(jdata);
44      town = data[0].name;
45	console.log("Anz: "+data.length);
46	for (let i=0;i<data.length;i++){
47	      console.log("Stadt: "+data[i].name);
48	};
49     console.log("----------------------------");
50     if (data.length == 1){ 
51     console.log("nur ein Ort zur PLZ ");
52      window.document.bform.Ort.value = town; 
53     } else {
54        console.log("anderes Element erzeugen");
55        str="<select name='Ort' class='kontakt' title='Bitte w&auml;hlen Sie hier einen Ort aus!'>";
56	for (let i=0;i<data.length;i++){
57         if (oldtown == data[i].name)
58 		 str=str+"<option class='kontakt' value='"+data[i].name+"' selected>"+data[i].name+"</option>";
59	   else  str=str+"<option class='kontakt' value='"+data[i].name+"'>"+data[i].name+"</option>";
60	};
61	str=str +"</select>";
62        console.log("Element: "+str);
63        document.all.select_ort.innerHTML = str;
64     };
65    } else {
66       console.log(`Error: ${xhr.status}`);
67    }
68  };
69 };
70};
71