Ajax technology always goes out to send status

Ajax.js Code:
var xmlHttp;
function S_xmlhttprequest () {
if (window. ActiveXObject) {
Xmlhttp=new ActiveXObject ("Microsoft.XMLHTTP");
}
else if (widow. XMLHttpRequest) {
Xmlhttp=new XMLHttpRequest ();
}
}
function funphp100 (URL) {
S_xmlhttprequest ();
Xmlhttp.open ("GET", "for.php?id=" +url,true);
xmlhttp.onreadystatechange=byphp;
Xmlhttp.send (NULL);
}
function byphp () {
if (xmlhttp.readystate==1) {
document.getElementById (' php100 '). Innerhtml= "Loading ...";
}
if (xmlhttp.readystate==4) {

var byphp100 = Xmlhttp.responsetext;
document.getElementById (' php100 '). innerhtml=byphp100;

}

}
for.php Code
if ($id =$_get[id]) {
for ($i =1; $i <=5; $i + +) {

echo $i;
Sleep (2);
}
Exit ();
}
?>
index.php Code:

O
T
X

Reply to discussion (solution)

if ($id =$_get[id]) {for  ($i =1; $i <=5; $i + +) {echo $i;//sleep (2);   }   Exit ();}

Otx

What happened to my problem?

else if (widow. XMLHttpRequest) {
Xmlhttp=new XMLHttpRequest ();
}
Window

Thanks, ~~~~~~~~~~~.

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