Ajax Script not working in IE (window.XMLHttpRequest)

Question

Hi,
I have written following code in ajax.
This is a javascript function called on onchange event of a button.
This code works fine in firefox and chrome but does not work in IE8.0+
the values don't get displayed.
plz suggest me if there is any change.
thnx in advance.
<script type="text/javascript">
function showUser(str) {
  if (str=="") {
    document.getElementById("userDetailsShownHere").innerHTML="";
    return;
  if (window.XMLHttpRequest) {
    // code for IE7+, Firefox, Chrome, Opera, Safari
    xmlhttp=new XMLHttpRequest();
  } else { // code for IE6, IE5
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  xmlhttp.onreadystatechange=function() {
    if (xmlhttp.readyState==4 && xmlhttp.status==200) {
      document.getElementById("userDetailsShownHere").innerHTML=xmlhttp.responseText;
      document.getElementById("btn").name=str;
        showGift(str);
  xmlhttp.open("GET","getuser.php?username="+str,true);
  xmlhttp.send();
//This code will execute on button click
function showGift(str) {
    var life = document.getElementById("lifeLabel").value;
    var number = parseInt(life, 0);
    if(number == 55){      
        if (window.XMLHttpRequest) {
        // code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp=new XMLHttpRequest();
      } else { // code for IE6, IE5
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
      xmlhttp.onreadystatechange=function() {
        if (xmlhttp.readyState==4 && xmlhttp.status==200) {
          document.getElementById("userDetailsShownHere").innerHTML=xmlhttp.responseText;
         document.getElementById("btn").name=str;
       document.getElementById("btn").style.display="inline";
      xmlhttp.open("GET","getuser.php?username="+str,true);
      xmlhttp.send();
    else if(number > 0){
      document.getElementById("noLife").style.display="none";
        number = number - 1;
      if (window.XMLHttpRequest) {
        // code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp=new XMLHttpRequest();
      } else { // code for IE6, IE5
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
       xmlhttp.onreadystatechange=function() {
        if (xmlhttp.readyState==4 && xmlhttp.status==200) {
          document.getElementById("userDetailsShownHere").innerHTML=xmlhttp.responseText;
          document.getElementById("btn").name=str;
        document.getElementById("btn").style.display="none";
         if(document.getElementById("cometomorrow") || document.getElementById("win")){
            document.getElementById("btn").style.display="none";
            console.log("hide");
          }else{
            setTimeout("showButton()", 1000);
      xmlhttp.open("GET","getgift.php?username="+str+"&loop="+number,true);
      xmlhttp.send();
    else {
    document.getElementById("userDetailsShownHere").innerHTML="";
        document.getElementById("noLife").style.display="inline";
    document.getElementById("btn").style.display="none";
</script>

Answer 1

Hi Vishalika,
Please post questions about html, css and scripting for website development to
MSDN
IE Web Development forum is moving to stack-overflow
xmlhttpRequests is not available to webpages using the file: protocol in MSIE browsers.
If possible include with your questions a link to your website or a mashup that shows the issue.
If you are running the webpage from your file system (file: protocol), please advise as such.
f12>Debug tab to debug your webpage scripts and include any error messages from the console with your scripts... (however xmlhttprequests to local resources do not cause errors in the Developer tool console).... you should always test your web applications
from an actual web server first (localhost).
Questions regarding Internet Explorer 8, 9 and 10 and Internet Explorer 11 for the IT Pro Audience. Topics covered are: Installation, Deployment, Configuration, Security, Group Policy, Management questions. If you are a consumer looking for answers or to
raise a question, it's highly recommended you head on over to http://answers.microsoft.com/en-us
Rob^_^