JS Timer & Ajax POST
<script>
var timerTest = null;
var ajaxContent;
if (window.XMLHttpRequest)
{
ajaxContent = new XMLHttpRequest(); // IE7, IE8, IE9, IE10 , Firefox, Chrome, Opera, Safari
}
else
{
ajaxContent = new ActiveXObject("Microsoft.XMLHTTP"); // IE6, IE5
}
function timerTestCreate()
{
timerTest = setInterval(function(){timerTestOnTick()}, 1000);
}
function timerTestOnTick()
{
document.getElementById("timerdiv").innerHTML = document.getElementById("timerdiv").innerHTML + "•";
}
function timerTestDestroy()
{
window.clearInterval(timerTest);
}
function sendAjaxContent()
{
ajaxContent.open("POST", "ajaxtest.php", true);
ajaxContent.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
ajaxContent.send("timercontent=" + document.getElementById("timerdiv").innerHTML);
}
function requestAjaxContent()
{
document.getElementById("ajaxdiv").innerHTML = ajaxContent.responseText;
}
</script>
$timercontent = $_POST['timercontent'];
echo($timercontent); 
