Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<body>

<form action=""> 
<select name="customers" onchange="showCustomer(this.value)">
<option value="">Select a customer:</option>
<option value="ALFKI">Alfreds Futterkiste</option>
<option value="NORTS ">North/South</option>
<option value="WOLZA">Wolski Zajazd</option>
</select>
</form>

<p id="demo">Customer info will be listed here...</p>

<script>
function showCustomer(str) {
  var xmlhttp;
  if (str == "") {
    document.getElementById("demo").innerHTML = "";
    return;
  }  
  xmlhttp = new XMLHttpRequest();
  xmlhttp.onreadystatechange = function() {
    if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
      document.getElementById("demo").innerHTML =
      xmlhttp.responseText;
    }
  };
  xmlhttp.open("GET", "getcustomer.asp?q="+str, true);
  xmlhttp.send();
}
</script>

</body>
</html>