i dont know why my onreadystatechange function is not working
var xmlhttp;
var time;
function init()
{
time=0;
t=setInterval("timer()",1000);
}
function timer()
{
time++;
}
function sendrequest(v,qno)
{
if(window.XMLHttpRequest)
{
xmlhttp=new XMLHttpRequest();
}
else
{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if(xmlhttp.readyState==4 && xmlhttp.status==200)
{
alert("Came Inside");
postdata(v,qno);
}
}
}
function postdata(v,qno)
{
var l="http://localhost:90/reactiontime/calculate.php?value="+v+"&time="+timer+"&q="+qno;
alert(l);
if(xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("sentence").innerHTML=xmlhttp.response;
}
xmlhttp.open(GET,l,true);
xmlhttp.send(null);
}
the alert box inside onreadystatechange is not showing up