<!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>