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    <pre><code>&lt;SCRIPT language=javascript&gt; // Needed for IE6 and older to replicate the standard XMLHttpRequest object if (window.ActiveXObject &amp;&amp; !window.XMLHttpRequest){window.XMLHttpRequest = function(){progIds=new Array("Msxml2.XMLHTTP.6.0","Msxml2.XMLHTTP.5.0", "Msxml2.XMLHTTP.4.0","Msxml2.XMLHTTP.3.0","Msxml2.XMLHTTP", "Microsoft.XMLHTTP");for(i in progIds){try{return new ActiveXObject(progIds[i]);}catch(ex){alert(progIds[i]);}}return null;};} // Standard asynchonous AJAX code var xhr = new XMLHttpRequest(); // You would normally trade out the location.href with an actual .ashx // page. It's like this here only for testing, thereby requesting this // same page back from the server. xhr.open("POST",location.href,true); // The function that will be called asynchronously when the server sends // back its response xhr.onreadystatechange=function(){ // If you're using the file system instead of a web server then xhr.status // will come back as 0, not 200. And of course if the page isn't found // then a web server will send back a status of 404. xhr.readyState is 4 // when the page is done. if (xhr.readyState == 4 &amp;&amp; xhr.status == 200) { clearTimeout(xhrTimeout); // Looks like we didn't time out! // Use xhr.responseText to parse the server's response alert(xhr.responseText); } } // Now that we're ready to handle the response, we can make the request xhr.send("My excellent post info"); // Timeout to abort in 5 seconds var xhrTimeout=setTimeout("ajaxTimeout();",5000); function ajaxTimeout(){ xhr.abort(); alert("Well dang, the AJAX request timed out. Did you lose network "+ "connectivity for some reason?"); // Note that at this point you could try to send a notification to the // server that things failed, using the same xhr object. } &lt;/SCRIPT&gt; </code></pre>
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    1. POJavascript XMLHttpRequest issue
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    1. USRamiz Uddin
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      1. VTUpMod
    1. COYou have an `alert` on line 7 in the catch, that can get very annoying. I guess, that is left from debugging.
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      1. USBoldewyn
    2. COThanks Ramiz, excellent sample! 2 quesitons. :-) 1. I noticed in your code you do not call setInterval, I need to ping web site in a regular interval, not just once, I am confused how you implement this in your code? 2. when the function assigned to onreadystatechange will be called? When we call send on xhr or when any response from server is received? Will the function be called when there is timeout?
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      1. USGeorge2
    3. COAnother question is if the return code from web site is not 200, how does your code handles this issue?
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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