This is a simple oh, we first create an Ajax object and then sent to the PHP file, the last return value,
<script type= "Text/javascript" >
<!--
var xmlHttp;
function Creatxmlhttprequest () {
if (window. ActiveXObject) {
XmlHttp = new ActiveXObject (' microsoft.xmlhttp ');
else if (window. XMLHttpRequest) {
XmlHttp = new XMLHttpRequest ();
}
}
function Startrequest () {
var querystring;
var domain = "<?= $ip?>";
QueryString = "q=" + domain;
Creatxmlhttprequest ();
Xmlhttp.open ("POST", "./?action=do", "true");
Xmlhttp.onreadystatechange = Handlestatechange;
Xmlhttp.setrequestheader ("Content-type", "application/x-www-form-urlencoded;");
Xmlhttp.send (querystring);
}
function Handlestatechange () {
if (xmlhttp.readystate = = 1) {
document.getElementById (' Ipresult '). Style.csstext = "";
document.getelementbyid (' Ipresult '). InnerHTML = ' <span class= ' green ' > result loading, please wait ...< /SPAN> ';
}
if (xmlhttp.readystate = = 4) {
if (xmlhttp.status = =) {
document.getelementbyid (' Ipresult '). Style.csstext = "";
var Allcon = xmlhttp.responsetext;
document.getelementbyid (' Ipresult '). InnerHTML = Allcon;
}
}
}
//-->
</script>