<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
var lcDomain = "https://lazacode.org/";
var value = "";
$(document).ready(function(){
$("select").change(function(){
// alert($(this).val());
value = $(this).val();
window.location.href = lcDomain+'&state='+value;
});
});
</script>
</head>
<body>
Select State:
<select name="state">
<option value ="">Choose</option>
<option value="Kuala%20Lumpur">Kuala Lumpur</option>
<option value="Selangor">Selangor</option>
</select>
</body>
</html>