Java Script/Jquery
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script src="jquery-1.5.2.min.js"></script>
<script language="javascript">
function send_post()
{
$.post("url2.php", {formvar:document.getElementById('formvar').value}, function(data)
{
$("#isi").html(data);
});
}
$("#btn").click(function() {
send_post();
});
});
</script>